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• How to Disable Access to the Registry in Windows 7

  - by Mysticgeek

  If you don’t know what your doing in the Registry, you can mess up your computer pretty good. Today we show you how to prevent users from accessing the Registry and making any changes to it. Using Local Group Policy Editor Note: This method uses Group Policy Editor which is not available in Home versions of Windows. First type gpedit.msc into the Search box in the Start menu. When Group Policy Editor opens, navigate to User Configuration \ Administrative Templates then select System. Under Setting in the right panel double-click on Prevent access to registry editing tools. Select the radio button next to Enabled, click OK, then close out of Group Policy Editor. Now if a user tries to access the Registry… They will get the following message advising they cannot access it.   Using Registry Enabler & Disabler 3 If you’re using Home or Starter version of Windows 7, you can use a neat utility called Registry Enabler & Disabler (link below). This app works on XP and Vista as well. There is no installation involved so you can run it from a flash drive, disable the registry, then take the flash drive with you while a the user is on the machine.   Again, if the user tries to access the Registry they will get the following error… Using one of these options will stop users from gaining access to the Registry or running any registry hacks. Of course if you have a shared computer, you may want to set up other users with a Standard Account, as they won’t be able to make changes to the Registry anyway. Download Registry Enabler & Disabler 3 Similar Articles Productive Geek Tips Disable Notification Balloons in XPDisable/Enable Lock Workstation Functionality (Windows + L)Disable Windows Mobility Center in Windows 7 or VistaRegistry Hack to Disable Writing to USB DrivesSpeed Up Disk Access by Disabling Last Access Updating in Windows XP TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Acronis Online Backup DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows Fun with 47 charts and graphs Tomorrow is Mother’s Day Check the Average Speed of YouTube Videos You’ve Watched OutlookStatView Scans and Displays General Usage Statistics How to Add Exceptions to the Windows Firewall Office 2010 reviewed in depth by Ed Bott

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• ASP.NET Asynchronous Pages and when to use them

  - by rajbk

  There have been several articles posted about using  asynchronous pages in ASP.NET but none of them go into detail as to when you should use them. I finally found a great post by Thomas Marquardt that explains the process in depth. He addresses a key misconception also: So, in your ASP.NET application, when should you perform work asynchronously instead of synchronously? Well, only 1 thread per CPU can execute at a time.  Did you catch that?  A lot of people seem to miss this point...only one thread executes at a time on a CPU. When you have more than this, you pay an expensive penalty--a context switch. However, if a thread is blocked waiting on work...then it makes sense to switch to another thread, one that can execute now.  It also makes sense to switch threads if you want work to be done in parallel as opposed to in series, but up until a certain point it actually makes much more sense to execute work in series, again, because of the expensive context switch. Pop quiz: If you have a thread that is doing a lot of computational work and using the CPU heavily, and this takes a while, should you switch to another thread? No! The current thread is efficiently using the CPU, so switching will only incur the cost of a context switch. Ok, well, what if you have a thread that makes an HTTP or SOAP request to another server and takes a long time, should you switch threads? Yes! You can perform the HTTP or SOAP request asynchronously, so that once the "send" has occurred, you can unwind the current thread and not use any threads until there is an I/O completion for the "receive". Between the "send" and the "receive", the remote server is busy, so locally you don't need to be blocking on a thread, but instead make use of the asynchronous APIs provided in .NET Framework so that you can unwind and be notified upon completion. Again, it only makes sense to switch threads if the benefit from doing so out weights the cost of the switch. Read more about it in these posts: Performing Asynchronous Work, or Tasks, in ASP.NET Applications http://blogs.msdn.com/tmarq/archive/2010/04/14/performing-asynchronous-work-or-tasks-in-asp-net-applications.aspx ASP.NET Thread Usage on IIS 7.0 and 6.0 http://blogs.msdn.com/tmarq/archive/2007/07/21/asp-net-thread-usage-on-iis-7-0-and-6-0.aspx   PS: I generally do not write posts that simply link to other posts but think it is warranted in this case.

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• Survey Probes the Project Management Concerns of Financial Services Executives

  - by Melissa Centurio Lopes

  Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Do you wonder what are the top reasons why large projects in the financial industry fail to meet budgets, schedules, and other key performance criteria? Being able to answer this question can provide important insight and value of good project management practices for your organization. According to 400 senior executives who participated in a new survey conducted by the Economist Intelligence Unit and sponsored by Oracle, unrealistic project goals is the main reason for roadblocks to success Other common stumbling blocks are poor alignment between project and organizational goals, inadequate human resources, lack of strong leadership, and unwillingness among team members to point out problems. This survey sample also had a lot to say about the impact of regulatory compliance on the overall portfolio management process. Thirty-nine percent acknowledged that regulations enabled efficient functioning of their businesses. But a similar number said that regulations often require more financial resources than were originally allocated to bring projects in on time. Regulations were seen by 35 percent of the executives as roadblocks to their ability to invest in the organization’s growth and success. These revelations among others are discussed in depth in a new on-demand Webcast titled “Too Good to Fail: Developing Project Management Expertise in Financial Services” now available from Oracle. The Webcast features Brian Gardner, editor of the Economist Intelligence Unit, who presents these findings from this survey along with Guy Barlow, director of industry strategy for Oracle Primavera. Together, they analyze what the numbers mean for project and program managers and the financial services industry. Register today to watch the on-demand Webcast and get a full rundown and analysis of the survey results. Take the Economist Intelligence Unit benchmarking survey and see how your views compare with those of other financial services industry executives in ensuring project success.  Read more in the October Edition of the quarterly Information InDepth EPPM Newsletter

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• Scrum for Team Foundation Server 2010

  - by Martin Hinshelwood

  I will be presenting a session on “Scrum for TFS2010” not once, but twice! If you are going to be at the Aberdeen Partner Group meeting on 27th April, or DDD Scotland on 8th May then you may be able to catch my session. Credit: I want to give special thanks to Aaron Bjork from Microsoft who provided me with most of my material He is a Scrum and Power Point genius. Scrum for Team Foundation Server 2010 Synopsis Visual Studio ALM (formerly Visual Studio Team System (VSTS)) and Team Foundation Server (TFS) are the cornerstones of development on the Microsoft .NET platform. These are the best tools for a team to have successful projects and for the developers to have a focused and smooth software development process. For TFS 2010 Microsoft is heavily investing in Scrum and has already started moving some teams across to using it. Martin will not be going in depth with Scrum but you can find out more about Scrum by reading the Scrum Guide and you can even asses your Scrum knowledge by having a go at the Scrum Open Assessment. Come and see Martin Hinshelwood, Visual Studio ALM MVP and Solution Architect from SSW show you: How to successfully gather requirements with User stories How to plan a project using TFS 2010 and Scrum How to work with a product backlog in TFS 2010 The right way to plan a sprint with TFS 2010 Tracking your progress The right way to use work items What you can use from the built in reporting as well as the Project portals available on from the SharePoint dashboard The important reports to give your Product Owner / Project Manager Walk away knowing how to see the project health and progress. Visual Studio ALM is designed to help address many of these traditional problems faced by teams. It does so by providing a set of integrated tools to help teams improve their software development activities and to help managers better support the software development processes. During this session we will cover the lifecycle of creating work items and how this fits into Scrum using Visual Studio ALM and Team Foundation Server. If you want to know more about how to do Scrum with TFS then there is a new course that has been created in collaboration with Microsoft and Scrum.org that is going to be the official course for working with TFS 2010. SSW has Professional Scrum Developer Trainers who specialise in training your developers in implementing Scrum with Microsoft's Visual Studio ALM tools. Ken Schwaber and and Sam Guckenheimer: Professional Scrum Development Technorati Tags: Scrum,VS ALM,VS 2010,TFS 2010

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• Pro ASP.NET MVC Framework Review

  - by Ben Griswold

  Early in my career, when I wanted to learn a new technology, I’d sit in the bookstore aisle and I’d work my way through each of the available books on the given subject.  Put in enough time in a bookstore and you can learn just about anything. I used to really enjoy my time in the bookstore – but times have certainly changed.  Whereas books used to be the only place I could find solutions to my problems, now they may be the very last place I look.  I have been working with the ASP.NET MVC Framework for more than a year.  I have a few projects and a couple of major deployments under my belt and I was able to get up to speed with the framework without reading a single book*.  With so many resources at our fingertips (podcasts, screencasts, blogs, stackoverflow, open source projects, www.asp.net, you name it) why bother with a book? Well, I flipped through Steven Sanderson’s Pro ASP.NET MVC Framework a few months ago. And since it is prominently displayed in my co-worker’s office, I tend to pick it up as a reference from time to time.  Last week, I’m not sure why, I decided to read it cover to cover.  Man, did I eat this book up.  Granted, a lot of what I read was review, but it was only review because I had already learned lessons by piecing the puzzle together for myself via various sources. If I were starting with ASP.NET MVC (or ASP.NET Web Deployment in general) today, the first thing I would do is buy Steven Sanderson’s Pro ASP.NET MVC Framework and read it cover to cover. Steven Sanderson did such a great job with this book! As much as I appreciated the in-depth model, view, and controller talk, I was completely impressed with all the extra bits which were included.  There a was nice overview of BDD, view engine comparisons, a chapter dedicated to security and vulnerabilities, IoC, TDD and Mocking (of course), IIS deployment options and a nice overview of what the .NET platform and C# offers.  Heck, Sanderson even include bits about webforms! The book is fantastic and I highly recommend it – even if you think you’ve already got your head around ASP.NET MVC.  By the way, procrastinators may be in luck.  ASP.NET MVC V2 Framework can be pre-ordered.  You might want to jump right into the second edition and find out what Sanderson has to say about MVC 2. * Actually, I did read through the free bits of Professional ASP.NET MVC 1.0.  But it was just a chapter – albeit a really long chapter.

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• Enterprise 2.0 Conference: Building Social Business

  - by kellsey.ruppel

  The way we work is changing rapidly, offering an enormous competitive advantage to those who embrace the new tools that enable contextual, agile and simplified information exchange and collaboration to distributed workforces and networks of partners and customers. As many of you are aware, Enterprise 2.0 is the term for the technologies and business practices that liberate the workforce from the constraints of legacy communication and productivity tools like email. It provides business managers with access to the right information at the right time through a web of inter-connected applications, services and devices. Enterprise 2.0 makes accessible the collective intelligence of many, translating to a huge competitive advantage in the form of increased innovation, productivity and agility. The Enterprise 2.0 Conference takes a strategic perspective, emphasizing the bigger picture implications of the technology and the exploration of what is at stake for organizations trying to change not only tools, but also culture and process. Beyond discussion of the "why", there will also be in-depth opportunities for learning the "how" that will help you bring Enterprise 2.0 to your business.You won't want to miss this opportunity to learn and hear from leading experts in the fields of technology for business, collaboration, culture change and collective intelligence. Oracle is a proud Gold sponsor of the Enterprise 2.0 Conference, taking place this week in Boston. Come and learn about Oracle at the following panel sessions and Market Leaders Theater Sessions. Tuesday, June 19, 2012 at 1:30 p.m. Market Theater Presentation Into the Activity Stream, and Beyond! Introducing Oracle Social Network Oracle Speaker: Christian Finn, Senior Director of Evangelism, Oracle WebCenter Tuesday, June 19, 2012 at 2:30 p.m.  Panel Session Innovation versus Integration Oracle Panel Speaker: Christian Finn, Senior Director of Evangelism, Oracle WebCenter Wednesday, June 20, 2012 at 1:30 p.m. Business Leadership Roundtable Oracle Panel Speaker: Christian Finn, Senior Director of Evangelism, Oracle WebCenter Wednesday, June 20, 2012 at 3:00 p.m. Market Theater Presentation Into the Activity Stream, and Beyond! Introducing Oracle Social Network Oracle Speaker: Christian Finn, Senior Director of Evangelism, Oracle WebCenter Thursday, June 21, 2012 at 8:30 a.m. Panel Session Collecting and Processing Big Data: Architecting Systems that Scale Oracle Panel Speaker: Ashok Joshi, Senior Director, Berkeley DB Development Thursday, June 21, 2012 at 11:00 a.m. Panel Session The Future of Big Data: What's Next Oracle Panel Speaker: Ashok Joshi, Senior Director, Berkeley DB Development Be sure to stop by and visit Oracle booth #501, to see live demonstrations of Oracle Social Network and Oracle WebCenter!

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• Global Cache CR Requested But Current Block Received

  - by Liu Maclean(???)

  ????????«MINSCN?Cache Fusion Read Consistent» ????,???????????? ??????????????????: SQL> select * from V$version; BANNER -------------------------------------------------------------------------------- Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production PL/SQL Release 11.2.0.3.0 - Production CORE 11.2.0.3.0 Production TNS for Linux: Version 11.2.0.3.0 - Production NLSRTL Version 11.2.0.3.0 - Production SQL> select count(*) from gv$instance; COUNT(*) ---------- 2 SQL> select * from global_name; GLOBAL_NAME -------------------------------------------------------------------------------- www.oracledatabase12g.com ?11gR2 2??RAC??????????status???XG,????Xcurrent block???INSTANCE 2?hold?,?????INSTANCE 1?????????,?????: SQL> select * from test; ID ---------- 1 2 SQL> select dbms_rowid.rowid_block_number(rowid),dbms_rowid.rowid_relative_fno(rowid) from test; DBMS_ROWID.ROWID_BLOCK_NUMBER(ROWID) DBMS_ROWID.ROWID_RELATIVE_FNO(ROWID) ------------------------------------ ------------------------------------ 89233 1 89233 1 SQL> alter system flush buffer_cache; System altered. INSTANCE 1 Session A: SQL> update test set id=id+1 where id=1; 1 row updated. INSTANCE 1 Session B: SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 1 0 3 1755287 SQL> oradebug setmypid; Statement processed. SQL> oradebug dump gc_elements 255; Statement processed. SQL> oradebug tracefile_name; /s01/orabase/diag/rdbms/vprod/VPROD1/trace/VPROD1_ora_19111.trc GLOBAL CACHE ELEMENT DUMP (address: 0xa4ff3080): id1: 0x15c91 id2: 0x1 pkey: OBJ#76896 block: (1/89233) lock: X rls: 0x0 acq: 0x0 latch: 3 flags: 0x20 fair: 0 recovery: 0 fpin: 'kdswh11: kdst_fetch' bscn: 0x0.146e20 bctx: (nil) write: 0 scan: 0x0 lcp: (nil) lnk: [NULL] lch: [0xa9f6a6f8,0xa9f6a6f8] seq: 32 hist: 58 145:0 118 66 144:0 192 352 197 48 121 113 424 180 58 LIST OF BUFFERS LINKED TO THIS GLOBAL CACHE ELEMENT: flg: 0x02000001 lflg: 0x1 state: XCURRENT tsn: 0 tsh: 2 addr: 0xa9f6a5c8 obj: 76896 cls: DATA bscn: 0x0.1ac898 BH (0xa9f6a5c8) file#: 1 rdba: 0x00415c91 (1/89233) class: 1 ba: 0xa9e56000 set: 5 pool: 3 bsz: 8192 bsi: 0 sflg: 3 pwc: 0,15 dbwrid: 0 obj: 76896 objn: 76896 tsn: 0 afn: 1 hint: f hash: [0x91f4e970,0xbae9d5b8] lru: [0x91f58848,0xa9f6a828] lru-flags: debug_dump obj-flags: object_ckpt_list ckptq: [0x9df6d1d8,0xa9f6a740] fileq: [0xa2ece670,0xbdf4ed68] objq: [0xb4964e00,0xb4964e00] objaq: [0xb4964de0,0xb4964de0] st: XCURRENT md: NULL fpin: 'kdswh11: kdst_fetch' tch: 2 le: 0xa4ff3080 flags: buffer_dirty redo_since_read LRBA: [0x19.5671.0] LSCN: [0x0.1ac898] HSCN: [0x0.1ac898] HSUB: [1] buffer tsn: 0 rdba: 0x00415c91 (1/89233) scn: 0x0000.001ac898 seq: 0x01 flg: 0x00 tail: 0xc8980601 frmt: 0x02 chkval: 0x0000 type: 0x06=trans data ??????block: (1/89233)?GLOBAL CACHE ELEMENT DUMP?LOCK????X ??XG , ??????Current Block????Instance??modify???,????????????? ????Instance 2 ????: Instance 2 Session C: SQL> update test set id=id+1 where id=2; 1 row updated. Instance 2 Session D: SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 1 0 3 1756658 SQL> oradebug setmypid; Statement processed. SQL> oradebug dump gc_elements 255; Statement processed. SQL> oradebug tracefile_name; /s01/orabase/diag/rdbms/vprod/VPROD2/trace/VPROD2_ora_13038.trc GLOBAL CACHE ELEMENT DUMP (address: 0x89fb25a0): id1: 0x15c91 id2: 0x1 pkey: OBJ#76896 block: (1/89233) lock: XG rls: 0x0 acq: 0x0 latch: 3 flags: 0x20 fair: 0 recovery: 0 fpin: 'kduwh01: kdusru' bscn: 0x0.1acdf3 bctx: (nil) write: 0 scan: 0x0 lcp: (nil) lnk: [NULL] lch: [0x96f4cf80,0x96f4cf80] seq: 61 hist: 324 21 143:0 19 16 352 329 144:6 14 7 352 197 LIST OF BUFFERS LINKED TO THIS GLOBAL CACHE ELEMENT: flg: 0x0a000001 state: XCURRENT tsn: 0 tsh: 1 addr: 0x96f4ce50 obj: 76896 cls: DATA bscn: 0x0.1acdf6 BH (0x96f4ce50) file#: 1 rdba: 0x00415c91 (1/89233) class: 1 ba: 0x96bd4000 set: 5 pool: 3 bsz: 8192 bsi: 0 sflg: 2 pwc: 0,15 dbwrid: 0 obj: 76896 objn: 76896 tsn: 0 afn: 1 hint: f hash: [0x96ee1fe8,0xbae9d5b8] lru: [0x96f4d0b0,0x96f4cdc0] obj-flags: object_ckpt_list ckptq: [0xbdf519b8,0x96f4d5a8] fileq: [0xbdf519d8,0xbdf519d8] objq: [0xb4a47b90,0xb4a47b90] objaq: [0x96f4d0e8,0xb4a47b70] st: XCURRENT md: NULL fpin: 'kduwh01: kdusru' tch: 1 le: 0x89fb25a0 flags: buffer_dirty redo_since_read remote_transfered LRBA: [0x11.9e18.0] LSCN: [0x0.1acdf6] HSCN: [0x0.1acdf6] HSUB: [1] buffer tsn: 0 rdba: 0x00415c91 (1/89233) scn: 0x0000.001acdf6 seq: 0x01 flg: 0x00 tail: 0xcdf60601 frmt: 0x02 chkval: 0x0000 type: 0x06=trans data GCS CLIENT 0x89fb2618,6 resp[(nil),0x15c91.1] pkey 76896.0 grant 2 cvt 0 mdrole 0x42 st 0x100 lst 0x20 GRANTQ rl G0 master 1 owner 2 sid 0 remote[(nil),0] hist 0x94121c601163423c history 0x3c.0x4.0xd.0xb.0x1.0xc.0x7.0x9.0x14.0x1. cflag 0x0 sender 1 flags 0x0 replay# 0 abast (nil).x0.1 dbmap (nil) disk: 0x0000.00000000 write request: 0x0000.00000000 pi scn: 0x0000.00000000 sq[(nil),(nil)] msgseq 0x1 updseq 0x0 reqids[6,0,0] infop (nil) lockseq x2b8 pkey 76896.0 hv 93 [stat 0x0, 1->1, wm 32768, RMno 0, reminc 18, dom 0] kjga st 0x4, step 0.0.0, cinc 20, rmno 6, flags 0x0 lb 0, hb 0, myb 15250, drmb 15250, apifrz 0 ?Instance 2??????block: (1/89233)? GLOBAL CACHE ELEMENT Lock Convert?lock: XG ????GC_ELEMENTS DUMP???XCUR Cache Fusion?,???????X$ VIEW,??? X$LE X$KJBR X$KJBL, ???X$ VIEW???????????????????: INSTANCE 2 Session D: SELECT * FROM x$le WHERE le_addr IN (SELECT le_addr FROM x$bh WHERE obj IN (SELECT data_object_id FROM dba_objects WHERE owner = 'SYS' AND object_name = 'TEST') AND class = 1 AND state != 3); ADDR INDX INST_ID LE_ADDR LE_ID1 LE_ID2 ---------------- ---------- ---------- ---------------- ---------- ---------- LE_RLS LE_ACQ LE_FLAGS LE_MODE LE_WRITE LE_LOCAL LE_RECOVERY ---------- ---------- ---------- ---------- ---------- ---------- ----------- LE_BLKS LE_TIME LE_KJBL ---------- ---------- ---------------- 00007F94CA14CF60 7003 2 0000000089FB25A0 89233 1 0 0 32 2 0 1 0 1 0 0000000089FB2618 PCM Resource NAME?[ID1][ID2],[BL]???, ID1?ID2 ??blockno? fileno????, ??????????GC_elements dump?? id1: 0x15c91 id2: 0×1 pkey: OBJ#76896 block: (1/89233)?? ,?  kjblname ? kjbrname ??”[0x15c91][0x1],[BL]” ??: INSTANCE 2 Session D: SQL> set linesize 80 pagesize 1400 SQL> SELECT * 2 FROM x$kjbl l 3 WHERE l.kjblname LIKE '%[0x15c91][0x1],[BL]%'; ADDR INDX INST_ID KJBLLOCKP KJBLGRANT KJBLREQUE ---------------- ---------- ---------- ---------------- --------- --------- KJBLROLE KJBLRESP KJBLNAME ---------- ---------------- ------------------------------ KJBLNAME2 KJBLQUEUE ------------------------------ ---------- KJBLLOCKST KJBLWRITING ---------------------------------------------------------------- ----------- KJBLREQWRITE KJBLOWNER KJBLMASTER KJBLBLOCKED KJBLBLOCKER KJBLSID KJBLRDOMID ------------ ---------- ---------- ----------- ----------- ---------- ---------- KJBLPKEY ---------- 00007F94CA22A288 451 2 0000000089FB2618 KJUSEREX KJUSERNL 0 00 [0x15c91][0x1],[BL][ext 0x0,0x 89233,1,BL 0 GRANTED 0 0 1 0 0 0 0 0 76896 SQL> SELECT r.* FROM x$kjbr r WHERE r.kjbrname LIKE '%[0x15c91][0x1],[BL]%'; no rows selected Instance 1 session B: SQL> SELECT r.* FROM x$kjbr r WHERE r.kjbrname LIKE '%[0x15c91][0x1],[BL]%'; ADDR INDX INST_ID KJBRRESP KJBRGRANT KJBRNCVL ---------------- ---------- ---------- ---------------- --------- --------- KJBRROLE KJBRNAME KJBRMASTER KJBRGRANTQ ---------- ------------------------------ ---------- ---------------- KJBRCVTQ KJBRWRITER KJBRSID KJBRRDOMID KJBRPKEY ---------------- ---------------- ---------- ---------- ---------- 00007F801ACA68F8 1355 1 00000000B5A62AE0 KJUSEREX KJUSERNL 0 [0x15c91][0x1],[BL][ext 0x0,0x 0 00000000B48BB330 00 00 0 0 76896 ??????Instance 1???block: (1/89233),??????Instance 2 build cr block ????Instance 1, ?????????? ????? Instance 1? Foreground Process ? Instance 2?LMS??????RAC  TRACE: Instance 2: [oracle@vrh2 ~]$ ps -ef|grep ora_lms|grep -v grep oracle 23364 1 0 Apr29 ? 00:33:15 ora_lms0_VPROD2 SQL> oradebug setospid 23364 Oracle pid: 13, Unix process pid: 23364, image: [email protected] (LMS0) SQL> oradebug event 10046 trace name context forever,level 8:10708 trace name context forever,level 103: trace[rac.*] disk high; Statement processed. SQL> oradebug tracefile_name /s01/orabase/diag/rdbms/vprod/VPROD2/trace/VPROD2_lms0_23364.trc Instance 1 session B : SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 3 1756658 3 1756661 3 1755287 Instance 1 session A : SQL> alter session set events '10046 trace name context forever,level 8:10708 trace name context forever,level 103: trace[rac.*] disk high'; Session altered. SQL> select * from test; ID ---------- 2 2 SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 3 1761520 ?x$BH?????,???????Instance 1???build??CR block,????? TRACE ??: Instance 1 foreground Process: PARSING IN CURSOR #140336527348792 len=18 dep=0 uid=0 oct=3 lid=0 tim=1335939136125254 hv=1689401402 ad='b1a4c828' sqlid='c99yw1xkb4f1u' select * from test END OF STMT PARSE #140336527348792:c=2999,e=2860,p=0,cr=0,cu=0,mis=1,r=0,dep=0,og=1,plh=1357081020,tim=1335939136125253 EXEC #140336527348792:c=0,e=40,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,plh=1357081020,tim=1335939136125373 WAIT #140336527348792: nam='SQL*Net message to client' ela= 6 driver id=1650815232 #bytes=1 p3=0 obj#=0 tim=1335939136125420 *** 2012-05-02 02:12:16.125 kclscrs: req=0 block=1/89233 2012-05-02 02:12:16.125574 : kjbcro[0x15c91.1 76896.0][4] *** 2012-05-02 02:12:16.125 kclscrs: req=0 typ=nowait-abort *** 2012-05-02 02:12:16.125 kclscrs: bid=1:3:1:0:f:1e:0:0:10:0:0:0:1:2:4:1:20:0:0:0:c3:49:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:4:3:2:1:2:0:1c:0:4d:26:a3:52:0:0:0:0:c7:c:ca:62:c3:49:0:0:0:0:1:0:14:8e:47:76:1:2:dc:5:a9:fe:17:75:0:0:0:0:0:0:0:0:0:0:0:0:99:ed:0:0:0:0:0:0:10:0:0:0 2012-05-02 02:12:16.125718 : kjbcro[0x15c91.1 76896.0][4] 2012-05-02 02:12:16.125751 : GSIPC:GMBQ: buff 0xba0ee018, queue 0xbb79a7b8, pool 0x60013fa0, freeq 0, nxt 0xbb79a7b8, prv 0xbb79a7b8 2012-05-02 02:12:16.125780 : kjbsentscn[0x0.1ae0f0][to 2] 2012-05-02 02:12:16.125806 : GSIPC:SENDM: send msg 0xba0ee088 dest x20001 seq 177740 type 36 tkts xff0000 mlen x1680198 2012-05-02 02:12:16.125918 : kjbmscr(0x15c91.1)reqid=0x8(req 0xa4ff30f8)(rinst 1)hldr 2(infosz 200)(lseq x2b8) 2012-05-02 02:12:16.126959 : GSIPC:KSXPCB: msg 0xba0ee088 status 30, type 36, dest 2, rcvr 1 *** 2012-05-02 02:12:16.127 kclwcrs: wait=0 tm=1233 *** 2012-05-02 02:12:16.127 kclwcrs: got 1 blocks from ksxprcv WAIT #140336527348792: nam='gc cr block 2-way' ela= 1233 p1=1 p2=89233 p3=1 obj#=76896 tim=1335939136127199 2012-05-02 02:12:16.127272 : kjbcrcomplete[0x15c91.1 76896.0][0] 2012-05-02 02:12:16.127309 : kjbrcvdscn[0x0.1ae0f0][from 2][idx 2012-05-02 02:12:16.127329 : kjbrcvdscn[no bscn <= rscn 0x0.1ae0f0][from 2] ???? kjbcro[0x15c91.1 76896.0][4] kjbsentscn[0x0.1ae0f0][to 2] ?Instance 2??SCN=1ae0f0=1761520? block: (1/89233),???’gc cr block 2-way’ ??,?????????CR block? Instance 2 LMS TRACE 2012-05-02 02:12:15.634057 : GSIPC:RCVD: ksxp msg 0x7f16e1598588 sndr 1 seq 0.177740 type 36 tkts 0 2012-05-02 02:12:15.634094 : GSIPC:RCVD: watq msg 0x7f16e1598588 sndr 1, seq 177740, type 36, tkts 0 2012-05-02 02:12:15.634108 : GSIPC:TKT: collect msg 0x7f16e1598588 from 1 for rcvr -1, tickets 0 2012-05-02 02:12:15.634162 : kjbrcvdscn[0x0.1ae0f0][from 1][idx 2012-05-02 02:12:15.634186 : kjbrcvdscn[no bscn1, wm 32768, RMno 0, reminc 18, dom 0] kjga st 0x4, step 0.0.0, cinc 20, rmno 6, flags 0x0 lb 0, hb 0, myb 15250, drmb 15250, apifrz 0 GCS CLIENT END 2012-05-02 02:12:15.635211 : kjbdowncvt[0x15c91.1 76896.0][1][options x0] 2012-05-02 02:12:15.635230 : GSIPC:AMBUF: rcv buff 0x7f16e1c56420, pool rcvbuf, rqlen 1103 2012-05-02 02:12:15.635308 : GSIPC:GPBMSG: new bmsg 0x7f16e1c56490 mb 0x7f16e1c56420 msg 0x7f16e1c564b0 mlen 152 dest x101 flushsz -1 2012-05-02 02:12:15.635334 : kjbmslset(0x15c91.1)) seq 0x4 reqid=0x6 (shadow 0xb48bb330.xb)(rsn 2)(mas@1) 2012-05-02 02:12:15.635355 : GSIPC:SPBMSG: send bmsg 0x7f16e1c56490 blen 184 msg 0x7f16e1c564b0 mtype 33 attr|dest x30101 bsz|fsz x1ffff 2012-05-02 02:12:15.635377 : GSIPC:SNDQ: enq msg 0x7f16e1c56490, type 65521 seq 118669, inst 1, receiver 1, queued 1 *** 2012-05-02 02:12:15.635 kclccctx: cleanup copy 0x7f16e1d94798 2012-05-02 02:12:15.635479 : [kjmpmsgi:compl][type 36][msg 0x7f16e1598588][seq 177740.0][qtime 0][ptime 1257] 2012-05-02 02:12:15.635511 : GSIPC:BSEND: flushing sndq 0xb491dd28, id 1, dcx 0xbc516778, inst 1, rcvr 1 qlen 0 1 2012-05-02 02:12:15.635536 : GSIPC:BSEND: no batch1 msg 0x7f16e1c56490 type 65521 len 184 dest (1:1) 2012-05-02 02:12:15.635557 : kjbsentscn[0x0.1ae0f1][to 1] 2012-05-02 02:12:15.635578 : GSIPC:SENDM: send msg 0x7f16e1c56490 dest x10001 seq 118669 type 65521 tkts x10002 mlen xb800e8 WAIT #0: nam='gcs remote message' ela= 180 waittime=1 poll=0 event=0 obj#=0 tim=1335939135635819 2012-05-02 02:12:15.635853 : GSIPC:RCVD: ksxp msg 0x7f16e167e0b0 sndr 1 seq 0.177741 type 32 tkts 0 2012-05-02 02:12:15.635875 : GSIPC:RCVD: watq msg 0x7f16e167e0b0 sndr 1, seq 177741, type 32, tkts 0 2012-05-02 02:12:15.636012 : GSIPC:TKT: collect msg 0x7f16e167e0b0 from 1 for rcvr -1, tickets 0 2012-05-02 02:12:15.636040 : kjbrcvdscn[0x0.1ae0f1][from 1][idx 2012-05-02 02:12:15.636060 : kjbrcvdscn[no bscn <= rscn 0x0.1ae0f1][from 1] 2012-05-02 02:12:15.636082 : GSIPC:TKT: dest (1:1) rtkt not acked 1  unassigned bufs 0  tkts 0  newbufs 0 2012-05-02 02:12:15.636102 : GSIPC:TKT: remove ctx dest (1:1) 2012-05-02 02:12:15.636125 : [kjmxmpm][type 32][seq 0.177741][msg 0x7f16e167e0b0][from 1] 2012-05-02 02:12:15.636146 : kjbmpocr(0xb0.6)seq 0x1,reqid=0x23a,(client 0x9fff7b58,0x1)(from 1)(lseq xdf0) 2????LMS????????? ??gcs remote message GSIPC ????SCN=[0x0.1ae0f0] block=1/89233???,??BAST kjbmpbast(0x15c91.1),?? block=1/89233??????? ??fairness??(?11.2.0.3???_fairness_threshold=2),?current block?KCL: F156: fairness downconvert,?Xcurrent DownConvert? Scurrent: Instance 2: SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 2 0 3 1756658 ??Instance 2 LMS ?cr block??? kjbmslset(0x15c91.1)) ????SEND QUEUE GSIPC:SNDQ: enq msg 0x7f16e1c56490? ???????Instance 1???? block: (1/89233)??? ??????: Instance 2: SQL> select CURRENT_RESULTS,LIGHT_WORKS from v$cr_block_server; CURRENT_RESULTS LIGHT_WORKS --------------- ----------- 29273 437 Instance 1 session A: SQL> SQL> select * from test; ID ---------- 2 2 SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 3 1761942 3 1761932 1 0 3 1761520 Instance 2: SQL> select CURRENT_RESULTS,LIGHT_WORKS from v$cr_block_server; CURRENT_RESULTS LIGHT_WORKS --------------- ----------- 29274 437 select * from test END OF STMT PARSE #140336529675592:c=0,e=337,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,plh=1357081020,tim=1335939668940051 EXEC #140336529675592:c=0,e=96,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,plh=1357081020,tim=1335939668940204 WAIT #140336529675592: nam='SQL*Net message to client' ela= 5 driver id=1650815232 #bytes=1 p3=0 obj#=0 tim=1335939668940348 *** 2012-05-02 02:21:08.940 kclscrs: req=0 block=1/89233 2012-05-02 02:21:08.940676 : kjbcro[0x15c91.1 76896.0][5] *** 2012-05-02 02:21:08.940 kclscrs: req=0 typ=nowait-abort *** 2012-05-02 02:21:08.940 kclscrs: bid=1:3:1:0:f:21:0:0:10:0:0:0:1:2:4:1:20:0:0:0:c3:49:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:4:3:2:1:2:0:1f:0:4d:26:a3:52:0:0:0:0:c7:c:ca:62:c3:49:0:0:0:0:1:0:17:8e:47:76:1:2:dc:5:a9:fe:17:75:0:0:0:0:0:0:0:0:0:0:0:0:99:ed:0:0:0:0:0:0:10:0:0:0 2012-05-02 02:21:08.940799 : kjbcro[0x15c91.1 76896.0][5] 2012-05-02 02:21:08.940833 : GSIPC:GMBQ: buff 0xba0ee018, queue 0xbb79a7b8, pool 0x60013fa0, freeq 0, nxt 0xbb79a7b8, prv 0xbb79a7b8 2012-05-02 02:21:08.940859 : kjbsentscn[0x0.1ae28c][to 2] 2012-05-02 02:21:08.940870 : GSIPC:SENDM: send msg 0xba0ee088 dest x20001 seq 177810 type 36 tkts xff0000 mlen x1680198 2012-05-02 02:21:08.940976 : kjbmscr(0x15c91.1)reqid=0xa(req 0xa4ff30f8)(rinst 1)hldr 2(infosz 200)(lseq x2b8) 2012-05-02 02:21:08.941314 : GSIPC:KSXPCB: msg 0xba0ee088 status 30, type 36, dest 2, rcvr 1 *** 2012-05-02 02:21:08.941 kclwcrs: wait=0 tm=707 *** 2012-05-02 02:21:08.941 kclwcrs: got 1 blocks from ksxprcv 2012-05-02 02:21:08.941818 : kjbassume[0x15c91.1][sender 2][mymode x1][myrole x0][srole x0][flgs x0][spiscn 0x0.0][swscn 0x0.0] 2012-05-02 02:21:08.941852 : kjbrcvdscn[0x0.1ae28d][from 2][idx 2012-05-02 02:21:08.941871 : kjbrcvdscn[no bscn ??????????????SCN=[0x0.1ae28c]=1761932 Version?CR block, ????receive????Xcurrent Block??SCN=1ae28d=1761933,Instance 1???Xcurrent Block???build????????SCN=1761932?CR BLOCK, ????????Current block,?????????'gc current block 2-way'? ?????????????request current block,?????kjbcro;?????Instance 2?LMS???????Current Block: Instance 2 LMS trace: 2012-05-02 02:21:08.448743 : GSIPC:RCVD: ksxp msg 0x7f16e14a4398 sndr 1 seq 0.177810 type 36 tkts 0 2012-05-02 02:21:08.448778 : GSIPC:RCVD: watq msg 0x7f16e14a4398 sndr 1, seq 177810, type 36, tkts 0 2012-05-02 02:21:08.448798 : GSIPC:TKT: collect msg 0x7f16e14a4398 from 1 for rcvr -1, tickets 0 2012-05-02 02:21:08.448816 : kjbrcvdscn[0x0.1ae28c][from 1][idx 2012-05-02 02:21:08.448834 : kjbrcvdscn[no bscn <= rscn 0x0.1ae28c][from 1] 2012-05-02 02:21:08.448857 : GSIPC:TKT: dest (1:1) rtkt not acked 2  unassigned bufs 0  tkts 0  newbufs 0 2012-05-02 02:21:08.448875 : GSIPC:TKT: remove ctx dest (1:1) 2012-05-02 02:21:08.448970 : [kjmxmpm][type 36][seq 0.177810][msg 0x7f16e14a4398][from 1] 2012-05-02 02:21:08.448993 : kjbmpbast(0x15c91.1) reqid=0x6 (req 0xa4ff30f8)(reqinst 1)(reqid 10)(flags x0) *** 2012-05-02 02:21:08.449 kclcrrf: req=48054 block=1/89233 *** 2012-05-02 02:21:08.449 kcl_compress_block: compressed: 6 free space: 7680 2012-05-02 02:21:08.449085 : kjbsentscn[0x0.1ae28d][to 1] 2012-05-02 02:21:08.449142 : kjbdeliver[to 1][0xa4ff30f8][10][current 1] 2012-05-02 02:21:08.449164 : kjbmssch(reqlock 0xa4ff30f8,10)(to 1)(bsz 344) 2012-05-02 02:21:08.449183 : GSIPC:AMBUF: rcv buff 0x7f16e18bcec8, pool rcvbuf, rqlen 1102 *** 2012-05-02 02:21:08.449 kclccctx: cleanup copy 0x7f16e1d94838 *** 2012-05-02 02:21:08.449 kcltouched: touch seconds 3271 *** 2012-05-02 02:21:08.449 kclgrantlk: req=48054 2012-05-02 02:21:08.449347 : [kjmpmsgi:compl][type 36][msg 0x7f16e14a4398][seq 177810.0][qtime 0][ptime 1119] WAIT #0: nam='gcs remote message' ela= 568 waittime=1 poll=0 event=0 obj#=0 tim=1335939668449962 2012-05-02 02:21:08.450001 : GSIPC:RCVD: ksxp msg 0x7f16e1bb22a0 sndr 1 seq 0.177811 type 32 tkts 0 2012-05-02 02:21:08.450024 : GSIPC:RCVD: watq msg 0x7f16e1bb22a0 sndr 1, seq 177811, type 32, tkts 0 2012-05-02 02:21:08.450043 : GSIPC:TKT: collect msg 0x7f16e1bb22a0 from 1 for rcvr -1, tickets 0 2012-05-02 02:21:08.450060 : kjbrcvdscn[0x0.1ae28e][from 1][idx 2012-05-02 02:21:08.450078 : kjbrcvdscn[no bscn <= rscn 0x0.1ae28e][from 1] 2012-05-02 02:21:08.450097 : GSIPC:TKT: dest (1:1) rtkt not acked 3  unassigned bufs 0  tkts 0  newbufs 0 2012-05-02 02:21:08.450116 : GSIPC:TKT: remove ctx dest (1:1) 2012-05-02 02:21:08.450136 : [kjmxmpm][type 32][seq 0.177811][msg 0x7f16e1bb22a0][from 1] 2012-05-02 02:21:08.450155 : kjbmpocr(0xb0.6)seq 0x1,reqid=0x23e,(client 0x9fff7b58,0x1)(from 1)(lseq xdf4) ???Instance 2??LMS???,???build cr block,??????Instance 1?????Current Block??????Instance 2??v$cr_block_server??????LIGHT_WORKS?????current block transfer??????,??????? CR server? Light Work Rule(Light Work Rule?8i Cr Server?????????,?Remote LMS?? build CR????????,resource holder?LMS???????block,????CR build If creating the consistent read version block involves too much work (such as reading blocks from disk), then the holder sends the block to the requestor, and the requestor completes the CR fabrication. The holder maintains a fairness counter of CR requests. After the fairness threshold is reached, the holder downgrades it to lock mode.)? ??????? CR Request ????Current Block?? ???:??????class?block,CR server??????? ??undo block?? undo header block?CR quest, LMS????Current Block, ????? ???? ??????? block cleanout? CR  Version??????? ???????? data blocks, ??????? CR quest  & CR received?(???????Light Work Rule,LMS"??"), ??Current Block??DownConvert???S lock,??LMS???????ship??current version?block? ??????? , ?????? ,???????DownConvert?????”_fairness_threshold“???200,????Xcurrent Block?????Scurrent, ????LMS?????Current Version?Data Block: SQL> show parameter fair NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ _fairness_threshold integer 200 Instance 1: SQL> update test set id=id+1 where id=4; 1 row updated. Instance 2: SQL> update test set id=id+1 where id=2; 1 row updated. SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 1 0 3 1838166 ?Instance 1? ????,? ??instance 2? v$cr_block_server?? instance 1 SQL> select * from test; ID ---------- 10 3 instance 2: SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 1 0 3 1883707 8 0 SQL> select * from test; ID ---------- 10 3 SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 1 0 3 1883707 8 0 ................... SQL> / STATE CR_SCN_BAS ---------- ---------- 2 0 3 1883707 3 1883695 repeat cr request on Instance 1 SQL> / STATE CR_SCN_BAS ---------- ---------- 8 0 3 1883707 3 1883695 ??????_fairness_threshold????????,?????200 ????????CR serve??Downgrade?lock, ????data block? CR Request????Receive? Current Block?

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• Disable IE 8 Thumbnail Previews on Windows 7 Taskbar

  - by Asian Angel

  The Aero thumbnail previews are a great new feature, but if you are not a fan of the flashy eye-candy, you can get rid of them with a simple tweak. Here is how to do it. Before Here we are…Internet Explorer 8 with a lot of How-To Geek Network goodness ready to go. The Taskbar Thumbnail Previews look very nice, but perhaps they take up too much room for those of you who like to keep things simple. The Taskbar Icon has the classic “fanned edge” look just like any other software with Taskbar Thumbnail Previews active. Disabling the Thumbnail Previews If you want to deactivate the Taskbar Thumbnail Previews for Internet Explorer, it is quite easy and will only take you a few moments to complete. Open IE and go to Tools \ Internet Options. When the Internet Options Window opens you will already be on the General Tab. Under the Tabs Section, click on the Settings button. The Tabbed Browsing Settings window opens. Uncheck Show previews for individual tabs in the taskbar and click OK. When you are returned to the Internet Options Window, click OK once again to totally exit out. Note: A browser restart will be required for the changes to take effect. After you have restarted Internet Explorer, you will see the simple default Taskbar Thumbnail Preview and standard icon look. Conclusion If you have been looking to disable the Taskbar Thumbnail Previews for Internet Explorer, then you are only a few clicks away from satisfaction. If you want to change it back, it is as simple as re-enabling the Show previews for individual tabs in the taskbar setting. Similar Articles Productive Geek Tips Increase the size of Taskbar Preview Thumbnails in Windows 7Vista Style Popup Previews for Firefox TabsWorkaround for Vista Taskbar Thumbnail Previews Not Showing CorrectlyDisable Thumbnail Previews in Windows 7 or Vista ExplorerGet Vista Taskbar Thumbnail Previews in Windows XP TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Acronis Online Backup DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows Fun with 47 charts and graphs Tomorrow is Mother’s Day Check the Average Speed of YouTube Videos You’ve Watched OutlookStatView Scans and Displays General Usage Statistics How to Add Exceptions to the Windows Firewall Office 2010 reviewed in depth by Ed Bott

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• Scrum for Team Foundation Server 2010

  - by Martin Hinshelwood

  I will be presenting a session on “Scrum for TFS2010” not once, but twice! If you are going to be at the Aberdeen Partner Group meeting on 27th April, or DDD Scotland on 8th May then you may be able to catch my session. Credit: I want to give special thanks to Aaron Bjork from Microsoft who provided me with most of my material He is a Scrum and Power Point genius. Updated 9th May 2010 – I have now presented at both of these sessions  and posted about it. Scrum for Team Foundation Server 2010 Synopsis Visual Studio ALM (formerly Visual Studio Team System (VSTS)) and Team Foundation Server (TFS) are the cornerstones of development on the Microsoft .NET platform. These are the best tools for a team to have successful projects and for the developers to have a focused and smooth software development process. For TFS 2010 Microsoft is heavily investing in Scrum and has already started moving some teams across to using it. Martin will not be going in depth with Scrum but you can find out more about Scrum by reading the Scrum Guide and you can even asses your Scrum knowledge by having a go at the Scrum Open Assessment. You can also read SSW’s Rules to Better Scrum using TFS which have been developed during our own Scrum implementations. Come and see Martin Hinshelwood, Visual Studio ALM MVP and Solution Architect from SSW show you: How to successfully gather requirements with User stories How to plan a project using TFS 2010 and Scrum How to work with a product backlog in TFS 2010 The right way to plan a sprint with TFS 2010 Tracking your progress The right way to use work items What you can use from the built in reporting as well as the Project portals available on from the SharePoint dashboard The important reports to give your Product Owner / Project Manager Walk away knowing how to see the project health and progress. Visual Studio ALM is designed to help address many of these traditional problems faced by teams. It does so by providing a set of integrated tools to help teams improve their software development activities and to help managers better support the software development processes. During this session we will cover the lifecycle of creating work items and how this fits into Scrum using Visual Studio ALM and Team Foundation Server. If you want to know more about how to do Scrum with TFS then there is a new course that has been created in collaboration with Microsoft and Scrum.org that is going to be the official course for working with TFS 2010. SSW has Professional Scrum Developer Trainers who specialise in training your developers in implementing Scrum with Microsoft's Visual Studio ALM tools. Ken Schwaber and and Sam Guckenheimer: Professional Scrum Development Technorati Tags: Scrum,VS ALM,VS 2010,TFS 2010

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• The Incremental Architect&acute;s Napkin &ndash; #3 &ndash; Make Evolvability inevitable

  - by Ralf Westphal

  Originally posted on: http://geekswithblogs.net/theArchitectsNapkin/archive/2014/06/04/the-incremental-architectacutes-napkin-ndash-3-ndash-make-evolvability-inevitable.aspxThe easier something to measure the more likely it will be produced. Deviations between what is and what should be can be readily detected. That´s what automated acceptance tests are for. That´s what sprint reviews in Scrum are for. It´s no small wonder our software looks like it looks. It has all the traits whose conformance with requirements can easily be measured. And it´s lacking traits which cannot easily be measured. Evolvability (or Changeability) is such a trait. If an operation is correct, if an operation if fast enough, that can be checked very easily. But whether Evolvability is high or low, that cannot be checked by taking a measure or two. Evolvability might correlate with certain traits, e.g. number of lines of code (LOC) per function or Cyclomatic Complexity or test coverage. But there is no threshold value signalling “evolvability too low”; also Evolvability is hardly tangible for the customer. Nevertheless Evolvability is of great importance - at least in the long run. You can get away without much of it for a short time. Eventually, though, it´s needed like any other requirement. Or even more. Because without Evolvability no other requirement can be implemented. Evolvability is the foundation on which all else is build. Such fundamental importance is in stark contrast with its immeasurability. To compensate this, Evolvability must be put at the very center of software development. It must become the hub around everything else revolves. Since we cannot measure Evolvability, though, we cannot start watching it more. Instead we need to establish practices to keep it high (enough) at all times. Chefs have known that for long. That´s why everybody in a restaurant kitchen is constantly seeing after cleanliness. Hygiene is important as is to have clean tools at standardized locations. Only then the health of the patrons can be guaranteed and production efficiency is constantly high. Still a kitchen´s level of cleanliness is easier to measure than software Evolvability. That´s why important practices like reviews, pair programming, or TDD are not enough, I guess. What we need to keep Evolvability in focus and high is… to continually evolve. Change must not be something to avoid but too embrace. To me that means the whole change cycle from requirement analysis to delivery needs to be gone through more often. Scrum´s sprints of 4, 2 even 1 week are too long. Kanban´s flow of user stories across is too unreliable; it takes as long as it takes. Instead we should fix the cycle time at 2 days max. I call that Spinning. No increment must take longer than from this morning until tomorrow evening to finish. Then it should be acceptance checked by the customer (or his/her representative, e.g. a Product Owner). For me there are several resasons for such a fixed and short cycle time for each increment: Clear expectations Absolute estimates (“This will take X days to complete.”) are near impossible in software development as explained previously. Too much unplanned research and engineering work lurk in every feature. And then pervasive interruptions of work by peers and management. However, the smaller the scope the better our absolute estimates become. That´s because we understand better what really are the requirements and what the solution should look like. But maybe more importantly the shorter the timespan the more we can control how we use our time. So much can happen over the course of a week and longer timespans. But if push comes to shove I can block out all distractions and interruptions for a day or possibly two. That´s why I believe we can give rough absolute estimates on 3 levels: Noon Tonight Tomorrow Think of a meeting with a Product Owner at 8:30 in the morning. If she asks you, how long it will take you to implement a user story or bug fix, you can say, “It´ll be fixed by noon.”, or you can say, “I can manage to implement it until tonight before I leave.”, or you can say, “You´ll get it by tomorrow night at latest.” Yes, I believe all else would be naive. If you´re not confident to get something done by tomorrow night (some 34h from now) you just cannot reliably commit to any timeframe. That means you should not promise anything, you should not even start working on the issue. So when estimating use these four categories: Noon, Tonight, Tomorrow, NoClue - with NoClue meaning the requirement needs to be broken down further so each aspect can be assigned to one of the first three categories. If you like absolute estimates, here you go. But don´t do deep estimates. Don´t estimate dozens of issues; don´t think ahead (“Issue A is a Tonight, then B will be a Tomorrow, after that it´s C as a Noon, finally D is a Tonight - that´s what I´ll do this week.”). Just estimate so Work-in-Progress (WIP) is 1 for everybody - plus a small number of buffer issues. To be blunt: Yes, this makes promises impossible as to what a team will deliver in terms of scope at a certain date in the future. But it will give a Product Owner a clear picture of what to pull for acceptance feedback tonight and tomorrow. Trust through reliability Our trade is lacking trust. Customers don´t trust software companies/departments much. Managers don´t trust developers much. I find that perfectly understandable in the light of what we´re trying to accomplish: delivering software in the face of uncertainty by means of material good production. Customers as well as managers still expect software development to be close to production of houses or cars. But that´s a fundamental misunderstanding. Software development ist development. It´s basically research. As software developers we´re constantly executing experiments to find out what really provides value to users. We don´t know what they need, we just have mediated hypothesises. That´s why we cannot reliably deliver on preposterous demands. So trust is out of the window in no time. If we switch to delivering in short cycles, though, we can regain trust. Because estimates - explicit or implicit - up to 32 hours at most can be satisfied. I´d say: reliability over scope. It´s more important to reliably deliver what was promised then to cover a lot of requirement area. So when in doubt promise less - but deliver without delay. Deliver on scope (Functionality and Quality); but also deliver on Evolvability, i.e. on inner quality according to accepted principles. Always. Trust will be the reward. Less complexity of communication will follow. More goodwill buffer will follow. So don´t wait for some Kanban board to show you, that flow can be improved by scheduling smaller stories. You don´t need to learn that the hard way. Just start with small batch sizes of three different sizes. Fast feedback What has been finished can be checked for acceptance. Why wait for a sprint of several weeks to end? Why let the mental model of the issue and its solution dissipate? If you get final feedback after one or two weeks, you hardly remember what you did and why you did it. Resoning becomes hard. But more importantly youo probably are not in the mood anymore to go back to something you deemed done a long time ago. It´s boring, it´s frustrating to open up that mental box again. Learning is harder the longer it takes from event to feedback. Effort can be wasted between event (finishing an issue) and feedback, because other work might go in the wrong direction based on false premises. Checking finished issues for acceptance is the most important task of a Product Owner. It´s even more important than planning new issues. Because as long as work started is not released (accepted) it´s potential waste. So before starting new work better make sure work already done has value. By putting the emphasis on acceptance rather than planning true pull is established. As long as planning and starting work is more important, it´s a push process. Accept a Noon issue on the same day before leaving. Accept a Tonight issue before leaving today or first thing tomorrow morning. Accept a Tomorrow issue tomorrow night before leaving or early the day after tomorrow. After acceptance the developer(s) can start working on the next issue. Flexibility As if reliability/trust and fast feedback for less waste weren´t enough economic incentive, there is flexibility. After each issue the Product Owner can change course. If on Monday morning feature slices A, B, C, D, E were important and A, B, C were scheduled for acceptance by Monday evening and Tuesday evening, the Product Owner can change her mind at any time. Maybe after A got accepted she asks for continuation with D. But maybe, just maybe, she has gotten a completely different idea by then. Maybe she wants work to continue on F. And after B it´s neither D nor E, but G. And after G it´s D. With Spinning every 32 hours at latest priorities can be changed. And nothing is lost. Because what got accepted is of value. It provides an incremental value to the customer/user. Or it provides internal value to the Product Owner as increased knowledge/decreased uncertainty. I find such reactivity over commitment economically very benefical. Why commit a team to some workload for several weeks? It´s unnecessary at beast, and inflexible and wasteful at worst. If we cannot promise delivery of a certain scope on a certain date - which is what customers/management usually want -, we can at least provide them with unpredecented flexibility in the face of high uncertainty. Where the path is not clear, cannot be clear, make small steps so you´re able to change your course at any time. Premature completion Customers/management are used to premeditating budgets. They want to know exactly how much to pay for a certain amount of requirements. That´s understandable. But it does not match with the nature of software development. We should know that by now. Maybe there´s somewhere in the world some team who can consistently deliver on scope, quality, and time, and budget. Great! Congratulations! I, however, haven´t seen such a team yet. Which does not mean it´s impossible, but I think it´s nothing I can recommend to strive for. Rather I´d say: Don´t try this at home. It might hurt you one way or the other. However, what we can do, is allow customers/management stop work on features at any moment. With spinning every 32 hours a feature can be declared as finished - even though it might not be completed according to initial definition. I think, progress over completion is an important offer software development can make. Why think in terms of completion beyond a promise for the next 32 hours? Isn´t it more important to constantly move forward? Step by step. We´re not running sprints, we´re not running marathons, not even ultra-marathons. We´re in the sport of running forever. That makes it futile to stare at the finishing line. The very concept of a burn-down chart is misleading (in most cases). Whoever can only think in terms of completed requirements shuts out the chance for saving money. The requirements for a features mostly are uncertain. So how does a Product Owner know in the first place, how much is needed. Maybe more than specified is needed - which gets uncovered step by step with each finished increment. Maybe less than specified is needed. After each 4–32 hour increment the Product Owner can do an experient (or invite users to an experiment) if a particular trait of the software system is already good enough. And if so, she can switch the attention to a different aspect. In the end, requirements A, B, C then could be finished just 70%, 80%, and 50%. What the heck? It´s good enough - for now. 33% money saved. Wouldn´t that be splendid? Isn´t that a stunning argument for any budget-sensitive customer? You can save money and still get what you need? Pull on practices So far, in addition to more trust, more flexibility, less money spent, Spinning led to “doing less” which also means less code which of course means higher Evolvability per se. Last but not least, though, I think Spinning´s short acceptance cycles have one more effect. They excert pull-power on all sorts of practices known for increasing Evolvability. If, for example, you believe high automated test coverage helps Evolvability by lowering the fear of inadverted damage to a code base, why isn´t 90% of the developer community practicing automated tests consistently? I think, the answer is simple: Because they can do without. Somehow they manage to do enough manual checks before their rare releases/acceptance checks to ensure good enough correctness - at least in the short term. The same goes for other practices like component orientation, continuous build/integration, code reviews etc. None of that is compelling, urgent, imperative. Something else always seems more important. So Evolvability principles and practices fall through the cracks most of the time - until a project hits a wall. Then everybody becomes desperate; but by then (re)gaining Evolvability has become as very, very difficult and tedious undertaking. Sometimes up to the point where the existence of a project/company is in danger. With Spinning that´s different. If you´re practicing Spinning you cannot avoid all those practices. With Spinning you very quickly realize you cannot deliver reliably even on your 32 hour promises. Spinning thus is pulling on developers to adopt principles and practices for Evolvability. They will start actively looking for ways to keep their delivery rate high. And if not, management will soon tell them to do that. Because first the Product Owner then management will notice an increasing difficulty to deliver value within 32 hours. There, finally there emerges a way to measure Evolvability: The more frequent developers tell the Product Owner there is no way to deliver anything worth of feedback until tomorrow night, the poorer Evolvability is. Don´t count the “WTF!”, count the “No way!” utterances. In closing For sustainable software development we need to put Evolvability first. Functionality and Quality must not rule software development but be implemented within a framework ensuring (enough) Evolvability. Since Evolvability cannot be measured easily, I think we need to put software development “under pressure”. Software needs to be changed more often, in smaller increments. Each increment being relevant to the customer/user in some way. That does not mean each increment is worthy of shipment. It´s sufficient to gain further insight from it. Increments primarily serve the reduction of uncertainty, not sales. Sales even needs to be decoupled from this incremental progress. No more promises to sales. No more delivery au point. Rather sales should look at a stream of accepted increments (or incremental releases) and scoup from that whatever they find valuable. Sales and marketing need to realize they should work on what´s there, not what might be possible in the future. But I digress… In my view a Spinning cycle - which is not easy to reach, which requires practice - is the core practice to compensate the immeasurability of Evolvability. From start to finish of each issue in 32 hours max - that´s the challenge we need to accept if we´re serious increasing Evolvability. Fortunately higher Evolvability is not the only outcome of Spinning. Customer/management will like the increased flexibility and “getting more bang for the buck”.

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• My VS 2010 and ASP.NET 4 Talks Online

  - by ScottGu

  The past 7 years I’ve done an annual all day event in Arizona – organized by the most excellent Scott Cate (who always does a phenomenal job organizing the event and making it a great one). Earlier this month I visited and presented 4+ hours of content covering VS 2010, ASP.NET 4 and ASP.NET MVC 2.  NextSlide.com – a great .NET shop local to Arizona who has a great product for sharing presentations – volunteered to record the talks and publish them for free using their online presentation tool.  The recordings they did turned out really, really great – and their online player (which combines slides + camera of me + demos in one experience) is awesome.  Below you can watch the first two segments of my event – which cover VS 2010 and ASP.NET 4 – for free online using the NextSlide.com player experience.  I’ll post a link to my ASP.NET MVC 2 segment a little later in a separate blog post.  If you’ve never seen my present these talks before and are interested in the content then I’d recommend checking them out – as these recordings do a really good job capturing them. Part 1 - VS 2010 This is a 49 minute segment that starts the event and covers a bunch of the new improvements in VS 2010.  You can launch the presentation directly here or watch it inline below.  You can download powerpoint versions of my slides here. Part 2- ASP.NET 4 This 61 minute segment comes next and drills into some of the framework improvements with ASP.NET 4.  It also goes further on some of the web specific tooling improvements in VS 2010 – and towards the end demonstrates some of the great new end-to-end web deployment features provided with VS 2010 (which work for both ASP.NET Web Forms and ASP.NET MVC applications). You can launch the presentation directly here or watch it inline below: Learning More about VS 2010 and ASP.NET 4 I’ve been working on a series of blog post about VS 2010 and .NET 4.  Many of the features I covered in my two talks above are described in more detail in posts within the series.  You can read all of them here. I’ll be continuing adding to the series via my blog, so stay tuned for more in-depth posts about a bunch more new features. Hope this helps, Scott P.S. People often ask whether they can re-use the slides+demos I use in my talks for talks of their own.  The answer to this is always absolutely! No need to ask permission.  Feel free to re-use all of my slides for talks of your own. P.P.S. In addition to blogging, I am also now using Twitter for quick updates and to share links. Follow me at: twitter.com/scottgu

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• The Missing Post

  - by Joe Mayo

  It’s somewhat of a mystery how the writing process can conjure up results that weren’t initially intended. Case in point is the fact that another post was planned to be in place of this one, but it never made the light of day.  This particular post started off as an introduction to a technology I had just learned, used, and wanted to share the experience with others.  The beginning was fun and demonstrated how easy it was to get started.  One of the things I’ve been pondering over time is that the Web is filled with introductions to new technologies and quick first looks, so I set out to add more depth, share lessons learned, and generally help you avoid the problems I encountered along the way; problems being a key theme of why you aren’t reading that post at this very minute.  Problems that curiously came from nowhere to thwart my good intentions. Success was sweet when using the tool for the prototypical demo scenario. The thing is, I intended the tool to accomplish a real task.  Having embarked on the path toward getting the job done, glitches began creeping into the process.  Realizing that this was all a bit new, I had patience and found a suitable work-around, but this was to be short lived. As in marching ants to a freshly laid out picnic, the problems kept coming until I had to get up and walk away.  Not to be outdone, sheer will and brute force manual intervention led to mission accomplishment.  Though I kept a positive outlook and was pleased at the final result, the process of using the tool had somewhat soured. Regardless of a less than stellar experience with the tool, I have a great deal of respect for the company that produced it and the people who built it. Perhaps I empathize for what they might feel after reading a post that details such deficiencies in their product.  Sure, if you’re in this business, you’ve got to have a thick skin; brush it off, fix the problem, and move on to greatness. But, today I feel like they’re people and are probably already aware of any issues I would seemingly reveal.  Anyone who builds a product or provides a service takes a lot of pride in what they do.  Sometimes they screw up and if their worth a dime, they make it up. I think that will happen in this case and there’s no reason why I should post information that has the potential to sound more negative than helpful.  While no one would ever notice or care either way, I’m posting something that won’t harm. Joe

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• SQL SERVER – Find Referenced or Referencing Object in SQL Server using sys.sql_expression_dependencies

  - by pinaldave

  A very common question which I often receive are: How do I find all the tables used in a particular stored procedure? How do I know which stored procedures are using a particular table? Both are valid question but before we see the answer of this question – let us understand two small concepts – Referenced and Referencing. Here is the sample stored procedure. CREATE PROCEDURE mySP AS SELECT * FROM Sales.Customer GO Reference: The table Sales.Customer is the reference object as it is being referenced in the stored procedure mySP. Referencing: The stored procedure mySP is the referencing object as it is referencing Sales.Customer table. Now we know what is referencing and referenced object. Let us run following queries. I am using AdventureWorks2012 as a sample database. If you do not have SQL Server 2012 here is the way to get SQL Server 2012 AdventureWorks database. Find Referecing Objects of a particular object Here we are finding all the objects which are using table Customer in their object definitions (regardless of the schema). USE AdventureWorks GO SELECT referencing_schema_name = SCHEMA_NAME(o.SCHEMA_ID), referencing_object_name = o.name, referencing_object_type_desc = o.type_desc, referenced_schema_name, referenced_object_name = referenced_entity_name, referenced_object_type_desc = o1.type_desc, referenced_server_name, referenced_database_name --,sed.* -- Uncomment for all the columns FROM sys.sql_expression_dependencies sed INNER JOIN sys.objects o ON sed.referencing_id = o.[object_id] LEFT OUTER JOIN sys.objects o1 ON sed.referenced_id = o1.[object_id] WHERE referenced_entity_name = 'Customer' The above query will return all the objects which are referencing the table Customer. Find Referenced Objects of a particular object Here we are finding all the objects which are used in the view table vIndividualCustomer. USE AdventureWorks GO SELECT referencing_schema_name = SCHEMA_NAME(o.SCHEMA_ID), referencing_object_name = o.name, referencing_object_type_desc = o.type_desc, referenced_schema_name, referenced_object_name = referenced_entity_name, referenced_object_type_desc = o1.type_desc, referenced_server_name, referenced_database_name --,sed.* -- Uncomment for all the columns FROM sys.sql_expression_dependencies sed INNER JOIN sys.objects o ON sed.referencing_id = o.[object_id] LEFT OUTER JOIN sys.objects o1 ON sed.referenced_id = o1.[object_id] WHERE o.name = 'vIndividualCustomer' The above query will return all the objects which are referencing the table Customer. I am just glad to write above query. There are more to write to this subject. In future blog post I will write more in depth about other DMV which also aids in finding referenced data. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL DMV, SQL Query, SQL Server, SQL Tips and Tricks, SQL Utility, T SQL, Technology

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• SQL SERVER – LOGBUFFER – Wait Type – Day 18 of 28

  - by pinaldave

  At first, I was not planning to write about this wait type. The reason was simple- I have faced this only once in my lifetime so far maybe because it is one of the top 5 wait types. I am not sure if it is a common wait type or not, but in the samples I had it really looks rare to me. From Book On-Line: LOGBUFFER Occurs when a task is waiting for space in the log buffer to store a log record. Consistently high values may indicate that the log devices cannot keep up with the amount of log being generated by the server. LOGBUFFER Explanation: The book online definition of the LOGBUFFER seems to be very accurate. On the system where I faced this wait type, the log file (LDF) was put on the local disk, and the data files (MDF, NDF) were put on SanDrives. My client then was not familiar about how the file distribution was supposed to be. Once we moved the LDF to a faster drive, this wait type disappeared. Reducing LOGBUFFER wait: There are several suggestions to reduce this wait stats: Move Transaction Log to Separate Disk from mdf and other files. (Make sure your drive where your LDF is has no IO bottleneck issues). Avoid cursor-like coding methodology and frequent commit statements. Find the most-active file based on IO stall time, as shown in the script written over here. You can also use fn_virtualfilestats to find IO-related issues using the script mentioned over here. Check the IO-related counters (PhysicalDisk:Avg.Disk Queue Length, PhysicalDisk:Disk Read Bytes/sec and PhysicalDisk :Disk Write Bytes/sec) for additional details. Read about them over here. If you have noticed, my suggestions for reducing the LOGBUFFER is very similar to WRITELOG. Although the procedures on reducing them are alike, I am not suggesting that LOGBUFFER and WRITELOG are same wait types. From the definition of the two, you will find their difference. However, they are both related to LOG and both of them can severely degrade the performance. Note: The information presented here is from my experience and there is no way that I claim it to be accurate. I suggest reading Book OnLine for further clarification. All the discussion of Wait Stats in this blog is generic and varies from system to system. It is recommended that you test this on a development server before implementing it to a production server. Reference: Pinal Dave (http://blog.SQLAuthority.com)   Filed under: Pinal Dave, PostADay, SQL, SQL Authority, SQL Query, SQL Scripts, SQL Server, SQL Tips and Tricks, SQL Wait Stats, SQL Wait Types, T SQL, Technology

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• SQLAuthority News – SQL Server 2012 Upgrade Technical Guide – A Comprehensive Whitepaper – (454 pages – 9 MB)

  - by pinaldave

  Microsoft has just released SQL Server 2012 Upgrade Technical Guide. This guide is very comprehensive and covers the subject of upgrade in-depth. This is indeed a helpful detailed white paper. Even writing a summary of this white paper would take over 100 pages. This further proves that SQL Server 2012 is quite an important release from Microsoft. This white paper discusses how to upgrade from SQL Server 2008/R2 to SQL Server 2012. I love how it starts with the most interesting and basic discussion of upgrade strategies: 1) In-place upgrades, 2) Side by side upgrade, 3) One-server, and 4) Two-server. This whitepaper is not just pure theory but is also an excellent source for some tips and tricks. Here is an example of a good tip from the paper: “If you want to upgrade just one database from a legacy instance of SQL Server and not upgrade the other databases on the server, use the side-by-side upgrade method instead of the in-place method.” There are so many trivia, tips and tricks that make creating the list seems humanly impossible given a short period of time. My friend Vinod Kumar, an SQL Server expert, wrote a very interesting article on SQL Server 2012 Upgrade before. In that article, Vinod addressed the most interesting and practical questions related to upgrades. He started with the fundamentals of how to start backup before upgrade and ended with fail-safe strategies after the upgrade is over. He covered end-to-end concepts in his blog posts in simple words in extremely precise statements. A successful upgrade uses a cycle of: planning, document process, testing, refine process, testing, planning upgrade window, execution, verifying of upgrade and opening for business. If you are at Vinod’s blog post, I suggest you go all the way down and collect the gold mine of most important links. I have bookmarked the blog by blogging about it and I suggest that you bookmark it as well with the way you prefer. Vinod Kumar’s blog post on SQL Server 2012 Upgrade Technical Guide SQL Server 2012 Upgrade Technical Guide is a detailed resource that’s also available online for free. Each chapter was carefully crafted and explained in detail. Here is a quick list of the chapters included in the whitepaper. Before downloading the guide, beware of its size of 9 MB and 454 pages. Here’s the list of chapters: Chapter 1: Upgrade Planning and Deployment Chapter 2: Management Tools Chapter 3: Relational Databases Chapter 4: High Availability Chapter 5: Database Security Chapter 6: Full-Text Search Chapter 7: Service Broker Chapter 8: SQL Server Express Chapter 9: SQL Server Data Tools Chapter 10: Transact-SQL Queries Chapter 11: Spatial Data Chapter 12: XML and XQuery Chapter 13: CLR Chapter 14: SQL Server Management Objects Chapter 15: Business Intelligence Tools Chapter 16: Analysis Services Chapter 17: Integration Services Chapter 18: Reporting Services Chapter 19: Data Mining Chapter 20: Other Microsoft Applications and Platforms Appendix 1: Version and Edition Upgrade Paths Appendix 2: SQL Server 2012: Upgrade Planning Checklist Download SQL Server 2012 Upgrade Technical Guide [454 pages and 9 MB] Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: Database, DBA, PostADay, SQL, SQL Authority, SQL Documentation, SQL Download, SQL Query, SQL Server, SQL Tips and Tricks, SQL White Papers, SQLAuthority News, SQLServer, T SQL, Technology

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• Ubuntu 14.04 Failed to load module udlfb

  - by jar276705

  DisplayLink doesn't load and run. The adapter is recognized and /dev/FB1 is created. USB bus info: Bus 001 Device 006: ID 17e9:0198 DisplayLink Xorg.0.log: X.Org X Server 1.15.1 Release Date: 2014-04-13 [ 44708.386] X Protocol Version 11, Revision 0 [ 44708.389] Build Operating System: Linux 3.2.0-37-generic i686 Ubuntu [ 44708.392] Current Operating System: Linux rrl 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:08:14 UTC 2014 i686 [ 44708.392] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic root=UUID=6b719a77-29e0-4668-8f16-57d0d3a73a3f ro quiet splash vt.handoff=7 [ 44708.399] Build Date: 16 April 2014 01:40:08PM [ 44708.402] xorg-server 2:1.15.1-0ubuntu2 (For technical support please see http://www.ubuntu.com/support) [ 44708.405] Current version of pixman: 0.30.2 [ 44708.412] Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. [ 44708.412] Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. [ 44708.427] (==) Log file: "/var/log/Xorg.0.log", Time: Thu May 1 09:38:27 2014 [ 44708.431] (==) Using config file: "/etc/X11/xorg.conf" [ 44708.434] (==) Using system config directory "/usr/share/X11/xorg.conf.d" [ 44708.435] (==) ServerLayout "X.org Configured" [ 44708.435] (**) |-->Screen "DisplayLinkScreen" (0) [ 44708.435] (**) | |-->Monitor "DisplayLinkMonitor" [ 44708.435] (**) | |-->Device "DisplayLinkDevice" [ 44708.435] (**) |-->Screen "Screen0" (1) [ 44708.435] (**) | |-->Monitor "Monitor0" [ 44708.435] (**) | |-->Device "Card0" [ 44708.435] (**) |-->Input Device "Mouse0" [ 44708.435] (**) |-->Input Device "Keyboard0" [ 44708.435] (==) Automatically adding devices [ 44708.435] (==) Automatically enabling devices [ 44708.435] (==) Automatically adding GPU devices [ 44708.435] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist. [ 44708.435] Entry deleted from font path. [ 44708.435] (WW) The directory "/usr/share/fonts/X11/75dpi/" does not exist. [ 44708.435] Entry deleted from font path. [ 44708.435] (WW) The directory "/usr/share/fonts/X11/75dpi" does not exist. [ 44708.435] Entry deleted from font path. [ 44708.435] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist. [ 44708.435] Entry deleted from font path. [ 44708.435] (WW) The directory "/usr/share/fonts/X11/75dpi/" does not exist. [ 44708.435] Entry deleted from font path. [ 44708.435] (WW) The directory "/usr/share/fonts/X11/75dpi" does not exist. [ 44708.435] Entry deleted from font path. [ 44708.435] (**) FontPath set to: /usr/share/fonts/X11/misc, /usr/share/fonts/X11/100dpi/:unscaled, /usr/share/fonts/X11/Type1, /usr/share/fonts/X11/100dpi, built-ins, /usr/share/fonts/X11/misc, /usr/share/fonts/X11/100dpi/:unscaled, /usr/share/fonts/X11/Type1, /usr/share/fonts/X11/100dpi, built-ins [ 44708.435] (**) ModulePath set to "/usr/lib/xorg/modules" [ 44708.435] (WW) Hotplugging is on, devices using drivers 'kbd', 'mouse' or 'vmmouse' will be disabled. [ 44708.435] (WW) Disabling Mouse0 [ 44708.435] (WW) Disabling Keyboard0 [ 44708.435] (II) Loader magic: 0xb77106c0 [ 44708.435] (II) Module ABI versions: [ 44708.435] X.Org ANSI C Emulation: 0.4 [ 44708.435] X.Org Video Driver: 15.0 [ 44708.435] X.Org XInput driver : 20.0 [ 44708.435] X.Org Server Extension : 8.0 [ 44708.436] (II) xfree86: Adding drm device (/dev/dri/card0) [ 44708.436] (II) xfree86: Adding drm device (/dev/dri/card1) [ 44708.437] (--) PCI:*(0:1:5:0) 1002:9616:105b:0e26 rev 0, Mem @ 0xf0000000/134217728, 0xfeae0000/65536, 0xfe900000/1048576, I/O @ 0x0000b000/256 [ 44708.441] Initializing built-in extension Generic Event Extension [ 44708.444] Initializing built-in extension SHAPE [ 44708.448] Initializing built-in extension MIT-SHM [ 44708.452] Initializing built-in extension XInputExtension [ 44708.456] Initializing built-in extension XTEST [ 44708.460] Initializing built-in extension BIG-REQUESTS [ 44708.464] Initializing built-in extension SYNC [ 44708.468] Initializing built-in extension XKEYBOARD [ 44708.471] Initializing built-in extension XC-MISC [ 44708.475] Initializing built-in extension SECURITY [ 44708.479] Initializing built-in extension XINERAMA [ 44708.483] Initializing built-in extension XFIXES [ 44708.487] Initializing built-in extension RENDER [ 44708.491] Initializing built-in extension RANDR [ 44708.494] Initializing built-in extension COMPOSITE [ 44708.498] Initializing built-in extension DAMAGE [ 44708.502] Initializing built-in extension MIT-SCREEN-SAVER [ 44708.506] Initializing built-in extension DOUBLE-BUFFER [ 44708.510] Initializing built-in extension RECORD [ 44708.513] Initializing built-in extension DPMS [ 44708.517] Initializing built-in extension Present [ 44708.521] Initializing built-in extension DRI3 [ 44708.525] Initializing built-in extension X-Resource [ 44708.528] Initializing built-in extension XVideo [ 44708.532] Initializing built-in extension XVideo-MotionCompensation [ 44708.535] Initializing built-in extension SELinux [ 44708.539] Initializing built-in extension XFree86-VidModeExtension [ 44708.542] Initializing built-in extension XFree86-DGA [ 44708.546] Initializing built-in extension XFree86-DRI [ 44708.549] Initializing built-in extension DRI2 [ 44708.549] (II) "glx" will be loaded. This was enabled by default and also specified in the config file. [ 44708.549] (WW) "xmir" is not to be loaded by default. Skipping. [ 44708.549] (II) LoadModule: "glx" [ 44708.549] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so [ 44708.550] (II) Module glx: vendor="X.Org Foundation" [ 44708.550] compiled for 1.15.1, module version = 1.0.0 [ 44708.550] ABI class: X.Org Server Extension, version 8.0 [ 44708.550] (==) AIGLX enabled [ 44708.553] Loading extension GLX [ 44708.553] (II) LoadModule: "udlfb" [ 44708.554] (WW) Warning, couldn't open module udlfb [ 44708.554] (II) UnloadModule: "udlfb" [ 44708.554] (II) Unloading udlfb [ 44708.554] (EE) Failed to load module "udlfb" (module does not exist, 0) [ 44708.554] (II) LoadModule: "modesetting" [ 44708.554] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so [ 44708.554] (II) Module modesetting: vendor="X.Org Foundation" [ 44708.554] compiled for 1.15.0, module version = 0.8.1 [ 44708.554] Module class: X.Org Video Driver [ 44708.554] ABI class: X.Org Video Driver, version 15.0 [ 44708.554] (==) Matched fglrx as autoconfigured driver 0 [ 44708.554] (==) Matched ati as autoconfigured driver 1 [ 44708.554] (==) Matched fglrx as autoconfigured driver 2 [ 44708.554] (==) Matched ati as autoconfigured driver 3 [ 44708.554] (==) Matched modesetting as autoconfigured driver 4 [ 44708.554] (==) Matched fbdev as autoconfigured driver 5 [ 44708.554] (==) Matched vesa as autoconfigured driver 6 [ 44708.554] (==) Assigned the driver to the xf86ConfigLayout [ 44708.554] (II) LoadModule: "fglrx" [ 44708.554] (WW) Warning, couldn't open module fglrx [ 44708.554] (II) UnloadModule: "fglrx" [ 44708.554] (II) Unloading fglrx [ 44708.554] (EE) Failed to load module "fglrx" (module does not exist, 0) [ 44708.554] (II) LoadModule: "ati" [ 44708.554] (II) Loading /usr/lib/xorg/modules/drivers/ati_drv.so [ 44708.554] (II) Module ati: vendor="X.Org Foundation" [ 44708.554] compiled for 1.15.0, module version = 7.3.0 [ 44708.554] Module class: X.Org Video Driver [ 44708.554] ABI class: X.Org Video Driver, version 15.0 [ 44708.554] (II) LoadModule: "radeon" [ 44708.555] (II) Loading /usr/lib/xorg/modules/drivers/radeon_drv.so [ 44708.555] (II) Module radeon: vendor="X.Org Foundation" [ 44708.555] compiled for 1.15.0, module version = 7.3.0 [ 44708.555] Module class: X.Org Video Driver [ 44708.555] ABI class: X.Org Video Driver, version 15.0 [ 44708.555] (II) LoadModule: "modesetting" [ 44708.555] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so [ 44708.555] (II) Module modesetting: vendor="X.Org Foundation" [ 44708.555] compiled for 1.15.0, module version = 0.8.1 [ 44708.555] Module class: X.Org Video Driver [ 44708.555] ABI class: X.Org Video Driver, version 15.0 [ 44708.555] (II) UnloadModule: "modesetting" [ 44708.555] (II) Unloading modesetting [ 44708.555] (II) Failed to load module "modesetting" (already loaded, 0) [ 44708.555] (II) LoadModule: "fbdev" [ 44708.555] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so [ 44708.555] (II) Module fbdev: vendor="X.Org Foundation" [ 44708.555] compiled for 1.15.0, module version = 0.4.4 [ 44708.555] Module class: X.Org Video Driver [ 44708.555] ABI class: X.Org Video Driver, version 15.0 [ 44708.555] (II) LoadModule: "vesa" [ 44708.555] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so [ 44708.555] (II) Module vesa: vendor="X.Org Foundation" [ 44708.555] compiled for 1.15.0, module version = 2.3.3 [ 44708.555] Module class: X.Org Video Driver [ 44708.555] ABI class: X.Org Video Driver, version 15.0 [ 44708.555] (II) modesetting: Driver for Modesetting Kernel Drivers: kms [ 44708.555] (II) RADEON: Driver for ATI Radeon chipsets: [ 44708.560] (II) FBDEV: driver for framebuffer: fbdev [ 44708.560] (II) VESA: driver for VESA chipsets: vesa [ 44708.560] (--) using VT number 7 [ 44708.578] (II) modesetting(0): using drv /dev/dri/card0 [ 44708.578] (II) modesetting(G0): using drv /dev/dri/card1 [ 44708.578] (WW) Falling back to old probe method for fbdev [ 44708.578] (II) Loading sub module "fbdevhw" [ 44708.578] (II) LoadModule: "fbdevhw" [ 44708.578] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so [ 44708.578] (II) Module fbdevhw: vendor="X.Org Foundation" [ 44708.578] compiled for 1.15.1, module version = 0.0.2 [ 44708.578] ABI class: X.Org Video Driver, version 15.0 [ 44708.578] (WW) Falling back to old probe method for vesa [ 44708.578] (**) modesetting(0): Depth 16, (--) framebuffer bpp 16 [ 44708.578] (==) modesetting(0): RGB weight 565 [ 44708.578] (==) modesetting(0): Default visual is TrueColor [ 44708.578] (II) modesetting(0): ShadowFB: preferred YES, enabled YES [ 44708.608] (II) modesetting(0): Output VGA-0 using monitor section DisplayLinkMonitor [ 44708.610] (II) modesetting(0): Output DVI-0 has no monitor section [ 44708.640] (II) modesetting(0): EDID for output VGA-0 [ 44708.640] (II) modesetting(0): Manufacturer: ACR Model: 74 Serial#: 2483090993 [ 44708.640] (II) modesetting(0): Year: 2009 Week: 40 [ 44708.640] (II) modesetting(0): EDID Version: 1.3 [ 44708.640] (II) modesetting(0): Analog Display Input, Input Voltage Level: 0.700/0.700 V [ 44708.640] (II) modesetting(0): Sync: Separate [ 44708.640] (II) modesetting(0): Max Image Size [cm]: horiz.: 53 vert.: 29 [ 44708.640] (II) modesetting(0): Gamma: 2.20 [ 44708.640] (II) modesetting(0): DPMS capabilities: StandBy Suspend Off; RGB/Color Display [ 44708.641] (II) modesetting(0): First detailed timing is preferred mode [ 44708.641] (II) modesetting(0): redX: 0.649 redY: 0.338 greenX: 0.289 greenY: 0.609 [ 44708.641] (II) modesetting(0): blueX: 0.146 blueY: 0.070 whiteX: 0.313 whiteY: 0.329 [ 44708.641] (II) modesetting(0): Supported established timings: [ 44708.641] (II) modesetting(0): 720x400@70Hz [ 44708.641] (II) modesetting(0): 640x480@60Hz [ 44708.641] (II) modesetting(0): 640x480@72Hz [ 44708.641] (II) modesetting(0): 640x480@75Hz [ 44708.641] (II) modesetting(0): 800x600@56Hz [ 44708.641] (II) modesetting(0): 800x600@60Hz [ 44708.641] (II) modesetting(0): 800x600@72Hz [ 44708.641] (II) modesetting(0): 800x600@75Hz [ 44708.641] (II) modesetting(0): 1024x768@60Hz [ 44708.641] (II) modesetting(0): 1024x768@70Hz [ 44708.641] (II) modesetting(0): 1024x768@75Hz [ 44708.641] (II) modesetting(0): 1280x1024@75Hz [ 44708.641] (II) modesetting(0): Manufacturer's mask: 0 [ 44708.641] (II) modesetting(0): Supported standard timings: [ 44708.641] (II) modesetting(0): #0: hsize: 1280 vsize 1024 refresh: 60 vid: 32897 [ 44708.641] (II) modesetting(0): #1: hsize: 1152 vsize 864 refresh: 75 vid: 20337 [ 44708.641] (II) modesetting(0): #2: hsize: 1440 vsize 900 refresh: 60 vid: 149 [ 44708.641] (II) modesetting(0): #3: hsize: 1440 vsize 900 refresh: 75 vid: 3989 [ 44708.641] (II) modesetting(0): #4: hsize: 1600 vsize 1200 refresh: 60 vid: 16553 [ 44708.641] (II) modesetting(0): #5: hsize: 1680 vsize 1050 refresh: 60 vid: 179 [ 44708.641] (II) modesetting(0): Supported detailed timing: [ 44708.641] (II) modesetting(0): clock: 138.5 MHz Image Size: 531 x 298 mm [ 44708.641] (II) modesetting(0): h_active: 1920 h_sync: 1968 h_sync_end 2000 h_blank_end 2080 h_border: 0 [ 44708.641] (II) modesetting(0): v_active: 1080 v_sync: 1083 v_sync_end 1088 v_blanking: 1111 v_border: 0 [ 44708.641] (II) modesetting(0): Monitor name: H243H [ 44708.641] (II) modesetting(0): Ranges: V min: 56 V max: 76 Hz, H min: 31 H max: 83 kHz, PixClock max 185 MHz [ 44708.641] (II) modesetting(0): Serial No: LEW0C0044002 [ 44708.641] (II) modesetting(0): EDID (in hex): [ 44708.641] (II) modesetting(0): 00ffffffffffff000472740031f60094 [ 44708.641] (II) modesetting(0): 2813010368351d78ea6085a6564a9c25 [ 44708.641] (II) modesetting(0): 125054afcf008180714f9500950fa940 [ 44708.641] (II) modesetting(0): b300010101011a3680a070381f403020 [ 44708.641] (II) modesetting(0): 3500132a2100001a000000fc00483234 [ 44708.642] (II) modesetting(0): 33480a20202020202020000000fd0038 [ 44708.642] (II) modesetting(0): 4c1f5312000a202020202020000000ff [ 44708.642] (II) modesetting(0): 004c45573043303034343030320a003c [ 44708.642] (II) modesetting(0): Printing probed modes for output VGA-0 [ 44708.642] (II) modesetting(0): Modeline "1280x1024"x75.0 135.00 1280 1296 1440 1688 1024 1025 1028 1066 +hsync +vsync (80.0 kHz UeP) [ 44708.642] (II) modesetting(0): Modeline "1920x1080"x59.9 138.50 1920 1968 2000 2080 1080 1083 1088 1111 +hsync -vsync (66.6 kHz eP) [ 44708.642] (II) modesetting(0): Modeline "1600x1200"x60.0 162.00 1600 1664 1856 2160 1200 1201 1204 1250 +hsync +vsync (75.0 kHz e) [ 44708.642] (II) modesetting(0): Modeline "1680x1050"x60.0 146.25 1680 1784 1960 2240 1050 1053 1059 1089 -hsync +vsync (65.3 kHz e) [ 44708.642] (II) modesetting(0): Modeline "1280x1024"x60.0 108.00 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync (64.0 kHz e) [ 44708.642] (II) modesetting(0): Modeline "1440x900"x75.0 136.75 1440 1536 1688 1936 900 903 909 942 -hsync +vsync (70.6 kHz e) [ 44708.642] (II) modesetting(0): Modeline "1440x900"x59.9 106.50 1440 1520 1672 1904 900 903 909 934 -hsync +vsync (55.9 kHz e) [ 44708.642] (II) modesetting(0): Modeline "1152x864"x75.0 108.00 1152 1216 1344 1600 864 865 868 900 +hsync +vsync (67.5 kHz e) [ 44708.642] (II) modesetting(0): Modeline "1024x768"x75.1 78.80 1024 1040 1136 1312 768 769 772 800 +hsync +vsync (60.1 kHz e) [ 44708.642] (II) modesetting(0): Modeline "1024x768"x70.1 75.00 1024 1048 1184 1328 768 771 777 806 -hsync -vsync (56.5 kHz e) [ 44708.642] (II) modesetting(0): Modeline "1024x768"x60.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz e) [ 44708.642] (II) modesetting(0): Modeline "800x600"x72.2 50.00 800 856 976 1040 600 637 643 666 +hsync +vsync (48.1 kHz e) [ 44708.642] (II) modesetting(0): Modeline "800x600"x75.0 49.50 800 816 896 1056 600 601 604 625 +hsync +vsync (46.9 kHz e) [ 44708.642] (II) modesetting(0): Modeline "800x600"x60.3 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz e) [ 44708.642] (II) modesetting(0): Modeline "800x600"x56.2 36.00 800 824 896 1024 600 601 603 625 +hsync +vsync (35.2 kHz e) [ 44708.642] (II) modesetting(0): Modeline "640x480"x75.0 31.50 640 656 720 840 480 481 484 500 -hsync -vsync (37.5 kHz e) [ 44708.642] (II) modesetting(0): Modeline "640x480"x72.8 31.50 640 664 704 832 480 489 491 520 -hsync -vsync (37.9 kHz e) [ 44708.642] (II) modesetting(0): Modeline "640x480"x60.0 25.20 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz e) [ 44708.642] (II) modesetting(0): Modeline "720x400"x70.1 28.32 720 738 846 900 400 412 414 449 -hsync +vsync (31.5 kHz e) [ 44708.645] (II) modesetting(0): EDID for output DVI-0 [ 44708.645] (II) modesetting(0): Output VGA-0 connected [ 44708.645] (II) modesetting(0): Output DVI-0 disconnected [ 44708.645] (II) modesetting(0): Using user preference for initial modes [ 44708.645] (II) modesetting(0): Output VGA-0 using initial mode 1280x1024 [ 44708.645] (II) modesetting(0): Using default gamma of (1.0, 1.0, 1.0) unless otherwise stated. [ 44708.645] (==) modesetting(0): DPI set to (96, 96) [ 44708.645] (II) Loading sub module "fb" [ 44708.645] (II) LoadModule: "fb" [ 44708.645] (II) Loading /usr/lib/xorg/modules/libfb.so [ 44708.645] (II) Module fb: vendor="X.Org Foundation" [ 44708.645] compiled for 1.15.1, module version = 1.0.0 [ 44708.645] ABI class: X.Org ANSI C Emulation, version 0.4 [ 44708.645] (II) Loading sub module "shadow" [ 44708.645] (II) LoadModule: "shadow" [ 44708.646] (II) Loading /usr/lib/xorg/modules/libshadow.so [ 44708.646] (II) Module shadow: vendor="X.Org Foundation" [ 44708.646] compiled for 1.15.1, module version = 1.1.0 [ 44708.646] ABI class: X.Org ANSI C Emulation, version 0.4 [ 44708.646] (**) modesetting(G0): Depth 16, (--) framebuffer bpp 16 [ 44708.646] (==) modesetting(G0): RGB weight 565 [ 44708.646] (==) modesetting(G0): Default visual is TrueColor [ 44708.646] (II) modesetting(G0): ShadowFB: preferred NO, enabled NO [ 44708.727] (II) modesetting(G0): Output DVI-1-0 using monitor section DisplayLinkMonitor [ 44708.808] (II) modesetting(G0): EDID for output DVI-1-0 [ 44708.808] (II) modesetting(G0): Manufacturer: WDE Model: 1702 Serial#: 0 [ 44708.808] (II) modesetting(G0): Year: 2005 Week: 14 [ 44708.808] (II) modesetting(G0): EDID Version: 1.3 [ 44708.808] (II) modesetting(G0): Analog Display Input, Input Voltage Level: 0.700/0.700 V [ 44708.808] (II) modesetting(G0): Sync: Separate [ 44708.808] (II) modesetting(G0): Max Image Size [cm]: horiz.: 34 vert.: 27 [ 44708.808] (II) modesetting(G0): Gamma: 2.20 [ 44708.808] (II) modesetting(G0): DPMS capabilities: StandBy Suspend Off; RGB/Color Display [ 44708.808] (II) modesetting(G0): Default color space is primary color space [ 44708.808] (II) modesetting(G0): First detailed timing is preferred mode [ 44708.808] (II) modesetting(G0): GTF timings supported [ 44708.808] (II) modesetting(G0): redX: 0.643 redY: 0.352 greenX: 0.283 greenY: 0.608 [ 44708.808] (II) modesetting(G0): blueX: 0.147 blueY: 0.102 whiteX: 0.313 whiteY: 0.329 [ 44708.808] (II) modesetting(G0): Supported established timings: [ 44708.808] (II) modesetting(G0): 720x400@70Hz [ 44708.808] (II) modesetting(G0): 640x480@60Hz [ 44708.808] (II) modesetting(G0): 640x480@67Hz [ 44708.808] (II) modesetting(G0): 640x480@72Hz [ 44708.808] (II) modesetting(G0): 640x480@75Hz [ 44708.808] (II) modesetting(G0): 800x600@56Hz [ 44708.808] (II) modesetting(G0): 800x600@60Hz [ 44708.808] (II) modesetting(G0): 800x600@72Hz [ 44708.808] (II) modesetting(G0): 800x600@75Hz [ 44708.808] (II) modesetting(G0): 832x624@75Hz [ 44708.808] (II) modesetting(G0): 1024x768@60Hz [ 44708.808] (II) modesetting(G0): 1024x768@70Hz [ 44708.808] (II) modesetting(G0): 1024x768@75Hz [ 44708.809] (II) modesetting(G0): 1280x1024@75Hz [ 44708.809] (II) modesetting(G0): Manufacturer's mask: 0 [ 44708.809] (II) modesetting(G0): Supported standard timings: [ 44708.809] (II) modesetting(G0): #0: hsize: 1280 vsize 1024 refresh: 60 vid: 32897 [ 44708.809] (II) modesetting(G0): #1: hsize: 1152 vsize 864 refresh: 75 vid: 20337 [ 44708.809] (II) modesetting(G0): Supported detailed timing: [ 44708.809] (II) modesetting(G0): clock: 108.0 MHz Image Size: 338 x 270 mm [ 44708.809] (II) modesetting(G0): h_active: 1280 h_sync: 1328 h_sync_end 1440 h_blank_end 1688 h_border: 0 [ 44708.809] (II) modesetting(G0): v_active: 1024 v_sync: 1025 v_sync_end 1028 v_blanking: 1066 v_border: 0 [ 44708.809] (II) modesetting(G0): Ranges: V min: 50 V max: 75 Hz, H min: 30 H max: 82 kHz, PixClock max 145 MHz [ 44708.809] (II) modesetting(G0): Monitor name: WDE LCM-17v2 [ 44708.809] (II) modesetting(G0): Serial No: 0 [ 44708.809] (II) modesetting(G0): EDID (in hex): [ 44708.809] (II) modesetting(G0): 00ffffffffffff005c85021700000000 [ 44708.809] (II) modesetting(G0): 0e0f010368221b78ef8bc5a45a489b25 [ 44708.809] (II) modesetting(G0): 1a5054bfef008180714f010101010101 [ 44708.809] (II) modesetting(G0): 010101010101302a009851002a403070 [ 44708.809] (II) modesetting(G0): 1300520e1100001e000000fd00324b1e [ 44708.809] (II) modesetting(G0): 520e000a202020202020000000fc0057 [ 44708.809] (II) modesetting(G0): 4445204c434d2d313776320a000000ff [ 44708.809] (II) modesetting(G0): 00300a202020202020202020202000e7 [ 44708.809] (II) modesetting(G0): Printing probed modes for output DVI-1-0 [ 44708.809] (II) modesetting(G0): Modeline "1280x1024"x60.0 108.00 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync (64.0 kHz UeP) [ 44708.809] (II) modesetting(G0): Modeline "1280x1024"x75.0 135.00 1280 1296 1440 1688 1024 1025 1028 1066 +hsync +vsync (80.0 kHz e) [ 44708.809] (II) modesetting(G0): Modeline "1280x960"x60.0 108.00 1280 1376 1488 1800 960 961 964 1000 +hsync +vsync (60.0 kHz e) [ 44708.809] (II) modesetting(G0): Modeline "1280x800"x74.9 106.50 1280 1360 1488 1696 800 803 809 838 -hsync +vsync (62.8 kHz e) [ 44708.809] (II) modesetting(G0): Modeline "1280x800"x59.8 83.50 1280 1352 1480 1680 800 803 809 831 +hsync -vsync (49.7 kHz e) [ 44708.809] (II) modesetting(G0): Modeline "1152x864"x75.0 108.00 1152 1216 1344 1600 864 865 868 900 +hsync +vsync (67.5 kHz e) [ 44708.809] (II) modesetting(G0): Modeline "1280x768"x74.9 102.25 1280 1360 1488 1696 768 771 778 805 +hsync -vsync (60.3 kHz e) [ 44708.809] (II) modesetting(G0): Modeline "1280x768"x59.9 79.50 1280 1344 1472 1664 768 771 778 798 -hsync +vsync (47.8 kHz e) [ 44708.810] (II) modesetting(G0): Modeline "1024x768"x75.1 78.80 1024 1040 1136 1312 768 769 772 800 +hsync +vsync (60.1 kHz e) [ 44708.810] (II) modesetting(G0): Modeline "1024x768"x70.1 75.00 1024 1048 1184 1328 768 771 777 806 -hsync -vsync (56.5 kHz e) [ 44708.810] (II) modesetting(G0): Modeline "1024x768"x60.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz e) [ 44708.810] (II) modesetting(G0): Modeline "1024x576"x60.0 46.97 1024 1064 1168 1312 576 577 580 597 -hsync +vsync (35.8 kHz) [ 44708.810] (II) modesetting(G0): Modeline "832x624"x74.6 57.28 832 864 928 1152 624 625 628 667 -hsync -vsync (49.7 kHz e) [ 44708.810] (II) modesetting(G0): Modeline "800x600"x72.2 50.00 800 856 976 1040 600 637 643 666 +hsync +vsync (48.1 kHz e) [ 44708.810] (II) modesetting(G0): Modeline "800x600"x75.0 49.50 800 816 896 1056 600 601 604 625 +hsync +vsync (46.9 kHz e) [ 44708.810] (II) modesetting(G0): Modeline "800x600"x60.3 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz e) [ 44708.810] (II) modesetting(G0): Modeline "800x600"x56.2 36.00 800 824 896 1024 600 601 603 625 +hsync +vsync (35.2 kHz e) [ 44708.810] (II) modesetting(G0): Modeline "848x480"x60.0 33.75 848 864 976 1088 480 486 494 517 +hsync +vsync (31.0 kHz e) [ 44708.810] (II) modesetting(G0): Modeline "640x480"x75.0 31.50 640 656 720 840 480 481 484 500 -hsync -vsync (37.5 kHz e) [ 44708.810] (II) modesetting(G0): Modeline "640x480"x72.8 31.50 640 664 704 832 480 489 491 520 -hsync -vsync (37.9 kHz e) [ 44708.810] (II) modesetting(G0): Modeline "640x480"x66.7 30.24 640 704 768 864 480 483 486 525 -hsync -vsync (35.0 kHz e) [ 44708.810] (II) modesetting(G0): Modeline "640x480"x60.0 25.20 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz e) [ 44708.810] (II) modesetting(G0): Modeline "720x400"x70.1 28.32 720 738 846 900 400 412 414 449 -hsync +vsync (31.5 kHz e) [ 44708.810] (II) modesetting(G0): Using default gamma of (1.0, 1.0, 1.0) unless otherwise stated. [ 44708.810] (==) modesetting(G0): DPI set to (96, 96) [ 44708.810] (II) Loading sub module "fb" [ 44708.810] (II) LoadModule: "fb" [ 44708.810] (II) Loading /usr/lib/xorg/modules/libfb.so [ 44708.810] (II) Module fb: vendor="X.Org Foundation" [ 44708.810] compiled for 1.15.1, module version = 1.0.0 [ 44708.811] ABI class: X.Org ANSI C Emulation, version 0.4 [ 44708.811] (II) UnloadModule: "radeon" [ 44708.811] (II) Unloading radeon [ 44708.811] (II) UnloadModule: "fbdev" [ 44708.811] (II) Unloading fbdev [ 44708.811] (II) UnloadSubModule: "fbdevhw" [ 44708.811] (II) Unloading fbdevhw [ 44708.811] (II) UnloadModule: "vesa" [ 44708.811] (II) Unloading vesa [ 44708.811] (==) modesetting(G0): Backing store enabled [ 44708.811] (==) modesetting(G0): Silken mouse enabled [ 44708.812] (II) modesetting(G0): RandR 1.2 enabled, ignore the following RandR disabled message. [ 44708.812] (==) modesetting(G0): DPMS enabled [ 44708.812] (WW) modesetting(G0): Option "fbdev" is not used [ 44708.812] (==) modesetting(0): Backing store enabled [ 44708.812] (==) modesetting(0): Silken mouse enabled [ 44708.812] (II) modesetting(0): RandR 1.2 enabled, ignore the following RandR disabled message. [ 44708.812] (==) modesetting(0): DPMS enabled [ 44708.812] (WW) modesetting(0): Option "fbdev" is not used [ 44708.856] (--) RandR disabled [ 44708.867] (II) SELinux: Disabled on system [ 44708.868] (II) AIGLX: Screen 0 is not DRI2 capable [ 44708.868] (EE) AIGLX: reverting to software rendering [ 44708.878] (II) AIGLX: Loaded and initialized swrast [ 44708.878] (II) GLX: Initialized DRISWRAST GL provider for screen 0 [ 44708.879] (II) modesetting(G0): Damage tracking initialized [ 44708.879] (II) modesetting(0): Damage tracking initialized [ 44708.879] (II) modesetting(0): Setting screen physical size to 338 x 270 [ 44708.900] (II) XKB: generating xkmfile /tmp/server-B20D7FC79C7F597315E3E501AEF10E0D866E8E92.xkm [ 44708.918] (II) config/udev: Adding input device Power Button (/dev/input/event1) [ 44708.918] (**) Power Button: Applying InputClass "evdev keyboard catchall" [ 44708.918] (II) LoadModule: "evdev" [ 44708.918] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so [ 44708.918] (II) Module evdev: vendor="X.Org Foundation" [ 44708.918] compiled for 1.15.0, module version = 2.8.2 [ 44708.918] Module class: X.Org XInput Driver [ 44708.918] ABI class: X.Org XInput driver, version 20.0 [ 44708.918] (II) Using input driver 'evdev' for 'Power Button' [ 44708.918] (**) Power Button: always reports core events [ 44708.918] (**) evdev: Power Button: Device: "/dev/input/event1" [ 44708.918] (--) evdev: Power Button: Vendor 0 Product 0x1 [ 44708.918] (--) evdev: Power Button: Found keys [ 44708.918] (II) evdev: Power Button: Configuring as keyboard [ 44708.918] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXPWRBN:00/input/input1/event1" [ 44708.918] (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD, id 6) [ 44708.918] (**) Option "xkb_rules" "evdev" [ 44708.918] (**) Option "xkb_model" "pc105" [ 44708.918] (**) Option "xkb_layout" "us" [ 44708.919] (II) config/udev: Adding input device Power Button (/dev/input/event0) [ 44708.919] (**) Power Button: Applying InputClass "evdev keyboard catchall" [ 44708.919] (II) Using input driver 'evdev' for 'Power Button' [ 44708.919] (**) Power Button: always reports core events [ 44708.919] (**) evdev: Power Button: Device: "/dev/input/event0" [ 44708.919] (--) evdev: Power Button: Vendor 0 Product 0x1 [ 44708.919] (--) evdev: Power Button: Found keys [ 44708.919] (II) evdev: Power Button: Configuring as keyboard [ 44708.919] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/device:00/PNP0C0C:00/input/input0/event0" Is there anything I can do to fix this problem.

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• How to Write an E-Book

  A few days ago my attention was drawn to a tweet spat between Karl Seguin and Scott Hanselman around the relaunch of ASP.NET and the title element in HTML. Tempest in a teapot of course, but worthwhile as I did some googling on Karl and found his blog at codebetter.com. From there it was a short jump to his free e-book, The Foundations of Programming. This short book is distinguished by its orientation, opinionated, its tone, mentoring and its honesty, which is refreshing. In Foundations, Karl covers what he considers the basics of programming and good design, including test driven development, dependency injection and domain driven design. Karl is opinionated, as the topics suggest, and doesnt bother to pretend that he doesnt think what hes suggesting is the better way, not just another way. He is aligned with ALT.NET, and gives an excellent overview of what that means; an overview more enlightening than the ALT.NET site. ALT.NET has its critics, but presenting a strong opinion grabbed my attention as a reader. It is a short walk from opinionated to hectoring,  but Karl held my attention without insulting me. He takes the time to explain, with examples, from the ground up, the problems that test driven development and dependency injection solve. So for dependency injection he builds it up from no DI, to a hand crafted approach, to a full fledged DI framework. This approach is more persuasive than just proscriptive and engaged me as the reader to follow along with his train of thought. Foundations is not as pedantic as I am making it sound. The final ingredient in Karls mix is honesty. He acknowledges that sometimes unit testing does cost more up front and take more time. He admits that sometimes he designs something a certain way just to be testable. He also warns that focusing too much on DI and loose coupling can lead to the poor design you are trying to avoid. These points add depth to his argument as I could tell hes speaking from experience, with some hard won lessons. I enjoyed The Foundations of Programming. When I was done with it, I was amazed how much I got a lot out of its 80 some pages. It is a rarity to come across something worthwhile that is longer then a tweet, but shorter than a tome these days. Well done Karl.   -- Relevant Links -- The now titled and newly relaunched page in question: http://www.asp.net/ The pleasantly confusing ALT.NET homepage: http://altdotnet.org/ A longer review, with details, chapter listings and all that important stuff: http://accidentaltechnologist.com/book-reviews/book-review-foundations-of-programming-by-karl-seguin/Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• How can I troubleshoot flash player/hardware conflict?

  - by sparthikas

  OBJECTIVE: Have a web browser on my Ubuntu install that can play youtube and hulu videos. Also would like to understand problem so that I can fix it again if I change software. Workarounds welcome, technical understanding and solution preferable. SYMPTOMS: Flash does not run - cannot make the right-click menu appear, an empty box is where video should be, changes to black box when hovering over other links. The "The Adobe Flash plugin has crashed" message does not appear with its sad lego face. cannot activate proprietary graphics driver - causes system to reboot to a prompt. SOLUTIONS TRIED: Replaced OS (tried slackware 13.37, fedora 17, linuxmint 13 maya, gentoo, lubuntu, and even winXP. lubuntu confirmed to work, don't remember how much tweaking, if any, this required. Slack, fedora, mint, and gentoo all failed to run flash just like ubuntu) many reinstalls of flash player via different methods, including cleaning up old installs first, also tried gnash and lightspark. replaced graphics card (replaced HIS IceQ Radeon HD 4670 AGP with older GeForce 5700 LE no change in problem) flash does successfully work on winXP installation with Catalyst AGP hotfix driver applied, however I consider windows wholly unacceptable for web browsing due to lack of security. Lubuntu install also works, however I do not want to be tied down to just using Lubuntu on this computer. SYSINFO: Have latest versions of Ubuntu, Firefox, and Flash on fresh Ubuntu install. Using Gigabyte 7s748 motherboard with Athlon XP 2800+ and 3 GB of RAM with Radeon HD 4670 AGP card, also a Dell soundblaster live series sound card (due to malfunction of onboard sound on motherboard) Wired internet connection, Maxtor 6Y120L3 HDD, Sony DVD RW AW-Q170A, Dell M993s monitor. NOTES: I do not know if the graphics driver issue and the flash troubles are linked. Substitution of older graphics card having same flash troubles seems to suggest they aren't. My troubleshooting method is rather reductionist, consisting mainly of "replace things until you find out what was causing the error by process of elimination" only it seems that this must be a conflict which arises when software decides how to configure itself on my hardware. That is, I know the hardware can run Flash, and I know that on other systems the same software can too, but somehow the combination fails. Consequently I feel out of my depth. I will keep trying things off and on, but I have spent probably about 30 man-hours in the last 4 months working on this problem with no joy other than the lubuntu workaround. Any help will be appreciated, I will be checking back and posting updates. Any pertinent questions regarding me or my computer will be answered, outputs from config files can be accessed and posted (IDK which ones or what parts to post).

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• SQL SERVER – Identify Numbers of Non Clustered Index on Tables for Entire Database

  - by pinaldave

  Here is the script which will give you numbers of non clustered indexes on any table in entire database. SELECT COUNT(i.TYPE) NoOfIndex, [schema_name] = s.name, table_name = o.name FROM sys.indexes i INNER JOIN sys.objects o ON i.[object_id] = o.[object_id] INNER JOIN sys.schemas s ON o.[schema_id] = s.[schema_id] WHERE o.TYPE IN ('U') AND i.TYPE = 2 GROUP BY s.name, o.name ORDER BY schema_name, table_name Here is the small story behind why this script was needed. I recently went to meet my friend in his office and he introduced me to his colleague in office as someone who is an expert in SQL Server Indexing. I politely said I am yet learning about Indexing and have a long way to go. My friend’s colleague right away said – he had a suggestion for me with related to Index. According to him he was looking for a script which will count all the non clustered on all the tables in the database and he was not able to find that on SQLAuthority.com. I was a bit surprised as I really do not remember all the details about what I have written so far. I quickly pull up my phone and tried to look for the script on my custom search engine and he was correct. I never wrote a script which will count all the non clustered indexes on tables in the whole database. Excessive indexing is not recommended in general. If you have too many indexes it will definitely negatively affect your performance. The above query will quickly give you details of numbers of indexes on tables on your entire database. You can quickly glance and use the numbers as reference. Please note that the number of the index is not a indication of bad indexes. There is a lot of wisdom I can write here but that is not the scope of this blog post. There are many different rules with Indexes and many different scenarios. For example – a table which is heap (no clustered index) is often not recommended on OLTP workload (here is the blog post to identify them), drop unused indexes with careful observation (here is the script for it), identify missing indexes and after careful testing add them (here is the script for it). Even though I have given few links here it is just the tip of the iceberg. If you follow only above four advices your ship may still sink. Those who wants to learn the subject in depth can watch the videos here after logging in. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Index, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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• Using MVP, how to create a view from another view, linked with the same model object

  - by Dinaiz

  Background We use the Model-View-Presenter design pattern along with the abstract factory pattern and the "signal/slot" pattern in our application, to fullfill 2 main requirements Enhance testability (very lightweight GUI, every action can be simulated in unit tests) Make the "view" totally independant from the rest, so we can change the actual view implementation, without changing anything else In order to do so our code is divided in 4 layers : Core : which holds the model Presenter : which manages interactions between the view interfaces (see bellow) and the core View Interfaces : they define the signals and slots for a View, but not the implementation Views : the actual implementation of the views When the presenter creates or deals with views, it uses an abstract factory and only knows about the view interfaces. It does the signal/slot binding between views interfaces. It doesn't care about the actual implementation. In the "views" layer, we have a concrete factory which deals with implementations. The signal/slot mechanism is implemented using a custom framework built upon boost::function. Really, what we have is something like that : http://martinfowler.com/eaaDev/PassiveScreen.html Everything works fine. The problem However, there's a problem I don't know how to solve. Let's take for example a very simple drag and drop example. I have two ContainersViews (ContainerView1, ContainerView2). ContainerView1 has an ItemView1. I drag the ItemView1 from ContainerView1 to ContainerView2. ContainerView2 must create an ItemView2, of a different type, but which "points" to the same model object as ItemView1. So the ContainerView2 gets a callback called for the drop action with ItemView1 as a parameter. It calls ContainerPresenterB passing it ItemViewB In this case we are only dealing with views. In MVP-PV, views aren't supposed to know anything about the presenter nor the model, right ? How can I create the ItemView2 from the ItemView1, not knowing which model object is ItemView1 representing ? I thought about adding an "itemId" to every view, this id being the id of the core object the view represents. So in pseudo code, ContainerPresenter2 would do something like itemView2=abstractWidgetFactory.createItemView2(); this.add(itemView2,itemView1.getCoreObjectId()) I don't get too much into details. That just work. The problem I have here is that those itemIds are just like pointers. And pointers can be dangling. Imagine that by mistake, I delete itemView1, and this deletes coreObject1. The itemView2 will have a coreObjectId which represents an invalid coreObject. Isn't there a more elegant and "bulletproof" solution ? Even though I never did ObjectiveC or macOSX programming, I couldn't help but notice that our framework is very similar to Cocoa framework. How do they deal with this kind of problem ? Couldn't find more in-depth information about that on google. If someone could shed some light on this. I hope this question isn't too confusing ...

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• Silverlight Cream for November 20, 2011 -- #1169

  - by Dave Campbell

  In this Issue: Andrea Boschin, Michael Crump, Michael Sync, WindowsPhoneGeek, Jesse Liberty, Derik Whittaker, Sumit Dutta, Jeff Blankenburg(-2-), and Beth Massi. Above the Fold: WP7: "Silver VNC 1.0 for Windows Phone "Mango"" Andrea Boschin Metro/WinRT/W8: "Lighting up your C# Metro apps by being a Share Source" Derik Whittaker LightSwitch: "Using the Save and Query Pipeline to “Archive” Deleted Records" Beth Massi Shoutouts: Michael Palermo's latest Desert Mountain Developers is up Michael Washington's latest Visual Studio #LightSwitch Daily is up From SilverlightCream.com: Silver VNC 1.0 for Windows Phone "Mango" Andrea Boschin published the first release of his "Silver VNC" version 1.0 on CodePlex. Check out the video on the blog post to see the capabilities, then go grab it from CodePlex. Fixing a broken toolbox (In Visual Studio 2010 SP1) Not Silverlight or Metro, but near to us all is Visual Studio... read how Michael Crump resolves the 'broken' toolbox that we all get now and then Windows Phone 7 – USB Device Not Recognized Error Michael Sync is looking for ideas about an error he gets any time he updates his phone. Windows Phone Toolkit MultiselectList in depth| Part2: Data Binding WindowsPhoneGeek has up the second part of his tutorial series on the MultiselectList from the Windows Phone Toolkit... this part is about data binding, complete with lots of code, discussion, pictures, and project to download New Mini-Tutorial Video Series Jesse Liberty started a new video series based on his Mango Mini tutorials. They will be on Channel 9, and he has a link on this post to the index. The firs of the series is on animation without code Lighting up your C# Metro apps by being a Share Source Derik Whittaker continues investigating Metro with this post about how to set your app up to share its content with other apps Part 21 - Windows Phone 7 - Toast Push Notification Sumit Dutta has part 21 of his WP7 series up and is talking about Toast Notification by creating a Windows form app for sending notifications to the WP7 app for viewing 31 Days of Mango | Day #6: Motion Jeff Blankenburg's Day 6 in his Mango series is about the Motion class which combines the data we get from the Accelerometer, Compass, and Gyroscope of the last couple days of posts 31 Days of Mango | Day #7: Raw Camera Data In Day 7, Jeff Blankenburg talks about the Camera on the WP7 and how to use the raw data in your own application Using the Save and Query Pipeline to “Archive” Deleted Records Beth Massi's latest LightSwith post is this one on tapping into the Save and Query pipelines to perform some data processing prior to saving or pulling data Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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• Just another web startup - platform comparison

  - by Holland

  I'm looking to do a web startup which involves something along the lines of an ecommerce site, yet a little more in depth than that. While it's something that I would rather not go into detail with in terms of the initial idea, I can specify (on a basic level) what would be required of the website. If you have any observations or opinions derived from personal experience, which relate to what you see here, I'd appreciate it if you could share these. Paypal's API interaction (definitely). From what I've read about their API, integration with it into their website is VERY expensive, so I'd probably hold off on that until I've (hopefully) generated money and write my own simple credit-card interaction system. SQL Backend (obviously) PostgreSQL seems like a pretty good choice, as from what I've read, it's structure is a bit more "object-oriented" than, say, MySQL. Then again, I've used MySQL before and haven't had much problem with it whatsoever. Would it be worth learning PostgreSQL for this purpose? Java or .Net implementation (Preferably Mono, so I can use .Net while hosting the website using Apache). The reason for this is because, frankly, while I know PHP is a great platform to develop websites with, I hate developing with it. Before someone chimes in and flames me for saying that, note that I have nothing against the language, I just don't like it for my purposes. While Mono may be good to go with, I'm aware that ASP.Net MVC 3 hasn't been released for Mono yet, which may be a pain to work with, without their Razor syntax. Ontop of that, it seems Java is completely FULL of class libraries which deal with web development, that can be downloaded from the web. If anyone has any experience with these, I'd appreciate if that were posted. From what I've read about Spring and Struts2, they seem to be the best out there - especially since they're (AFAIK) MVC. I've considered Python and Django, which do seem REALLY nice, but I don't know much Python, and I'd rather start with something that I already know (language-wise; not framework-wise) than dive into learning a language AND a new framework. I'd REALLY like to be able to host my website via Apache, rather than using Windows Server or anything like that, as, frankly, I hate their setup. I'm not dissing it in any way, shape, or form, I'm just saying I dislike it. <3 terminal config. If there is a good reason to with Windows Server, however, I'd be willing to learn it. C# has a lot of things that Java appears not to have, including Delegates, unsigned types, and LINQ. Is there anything that Java has which can counter these?

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• Is the science of Computer Science dead?

  - by Veaviticus

  Question : Is the science and art of CS dead? By that I mean, the real requirements to think, plan and efficiently solve problems seems to be falling away from CS these days. The field seems to be lowering the entry-barrier so more people can 'program' without having to learn how to truly program. Background : I'm a recent graduate with a BS in Computer Science. I'm working a starting position at a decent sized company in the IT department. I mostly do .NET and other Microsoft technologies at my job, but before this I've done Java stuff through internships and the like. I personally am a C++ programmer for my own for-fun projects. In Depth : Through the work I've been doing, it seems to me that the intense disciplines of a real science don't exist in CS anymore. In the past, programmers had to solve problems efficiently in order for systems to be robust and quick. But now, with the prevailing technologies like .NET, Java and scripting languages, it seems like efficiency and robustness have been traded for ease of development. Most of the colleagues that I work with don't even have degrees in Computer Science. Most graduated with Electrical Engineering degrees, a few with Software Engineering, even some who came from tech schools without a 4 year program. Yet they get by just fine without having the technical background of CS, without having studied theories and algorithms, without having any regard for making an elegant solution (they just go for the easiest, cheapest solution). The company pushes us to use Microsoft technologies, which take all the real thought out of the matter and replace it with libraries and tools that can auto-build your project for you half the time. I'm not trying to hate on the languages, I understand that they serve a purpose and do it well, but when your employees don't know how a hash-table works, and use the wrong sorting methods, or run SQL commands that are horribly inefficient (but get the job done in an acceptable time), it feels like more effort is being put into developing technologies that coddle new 'programmers' rather than actually teaching people how to do things right. I am interested in making efficient and, in my opinion, beautiful programs. If there is a better way to do it, I'd rather go back and refactor it than let it slide. But in the corporate world, they push me to complete tasks quickly rather than elegantly. And that really bugs me. Is this what I'm going to be looking forward to the rest of my life? Are there still positions out there for people who love the science and art of CS rather than just the paycheck? And on the same note, here's a good read if you haven't seen it before The Perils Of Java Schools

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• Silverlight Cream for March 13, 2011 -- #1059

  - by Dave Campbell

  In this Issue: András Velvárt, WIndowsPhoneGeek(-2-), Jesse Liberty(-2-), Victor Gaudioso, Kunal Chowdhury, Jeremy Likness, Michael Crump, and Dhananjay Kumar. Above the Fold: Silverlight: "Application Library Caching in Silverlight 4" Kunal Chowdhury WP7: "Handling WP7 orientation changes via Visual States" András Velvárt Shoutouts: Joe McBride gave a MEF Head User Group presentation and has posted How to Become a MEF Head – Slides & Code From SilverlightCream.com: Handling WP7 orientation changes via Visual States András Velvárt has an Expression Blend/WP7 post up discussing WP7 orientation changes and handling them via Visual States ... see an example from his SurfCube app, and a behavior to handle the control... with source. WP7 PerformanceProgressBar in depth WIndowsPhoneGeek has a post up discussing the WP7 Performance bar from the Windows Phone Toolkit. This is an update on the Toolkit based on the Feb 2011 release. Great explanation of the PerformanceProgressBar, external links, and sample code. Getting data out of WP7 WMAppManifest is easy with Coding4Fun PhoneHelper Next WindowsPhoneGeek has a post up about the PhoneHelper in the Coding4Fun TOolkit, and using it to get data out of the WMAppManifest easily. Good discussion, Links, and code as always Silverlight Unit Test For Phone In Jesse Liberty's "Windows Phone From Scratch" number 41, he's discussing Unit Testing for WP7... he gives some good external links and some good examples. Yet Another Podcast #27–Paul Betts Jesse Liberty's next post is his "Yet Another Podcast" number 27, and an interview with Paul Betts, the creator of Reactive UI... check out the podcast and also the good links listed. New Silverlight Video Tutorial: How to use the Fluid Move Behavior Victor Gaudioso has a new video tutorial up on using the Fluid Move Behavior... making a selected item animate from a ListBox to a Master Details Grid. Application Library Caching in Silverlight 4 Kunal Chowdhury takes a break from SilverlightZone long enough to write a post about Application Library Caching... for example on-demand loading of a 3rd-party XAP. Jounce Part 13: Navigation Parameters Jeremy Likness has his 13th post of a series in understanding his Jounce MVVM framework up. This episode surrounds a new release and what it contains, the primary focus being navigation parameters... that is you can raise a navigation event with a payload. Profiling Silverlight Applications after installing Visual Studio 2010 Service Pack 1 Michael Crump digs into the performance wizard for Silverlight that we get with VS2010 SP1. He shows how to get and read a profile... great intro to a new tool. Binding XML File to Data Grid in Silverlight Dhananjay Kumar demonstrates reading an XML file using LINQ to XML and binding the result to a Silverlight DataGrid Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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• Implement Negascout Algorithm with stack

  - by Dan

  I'm not familiar with how these stack exchange accounts work so if this is double posting I apologize. I asked the same thing on stackoverflow. I have added an AI routine to a game I am working on using the Negascout algorithm. It works great, but when I set a higher maximum depth it can take a few seconds to complete. The problem is it blocks the main thread, and the framework I am using does not have a way to deal with multi-threading properly across platforms. So I am trying to change this routine from recursively calling itself, to just managing a stack (vector) so that I can progress through the routine at a controlled pace and not lock up the application while the AI is thinking. I am getting hung up on the second recursive call in the loop. It relies on a returned value from the first call, so I don't know how to add these to a stack. My Working c++ Recursive Code: MoveScore abNegascout(vector<vector<char> > &board, int ply, int alpha, int beta, char piece) { if (ply==mMaxPly) { return MoveScore(evaluation.evaluateBoard(board, piece, oppPiece)); } int currentScore; int bestScore = -INFINITY; MoveCoord bestMove; int adaptiveBeta = beta; vector<MoveCoord> moveList = evaluation.genPriorityMoves(board, piece, findValidMove(board, piece, false)); if (moveList.empty()) { return MoveScore(bestScore); } bestMove = moveList[0]; for(int i=0;i<moveList.size();i++) { MoveCoord move = moveList[i]; vector<vector<char> > newBoard; newBoard.insert( newBoard.end(), board.begin(), board.end() ); effectMove(newBoard, piece, move.getRow(), move.getCol()); // First Call ****** MoveScore current = abNegascout(newBoard, ply+1, -adaptiveBeta, -max(alpha,bestScore), oppPiece); currentScore = - current.getScore(); if (currentScore>bestScore){ if (adaptiveBeta == beta || ply>=(mMaxPly-2)){ bestScore = currentScore; bestMove = move; }else { // Second Call ****** current = abNegascout(newBoard, ply+1, -beta, -currentScore, oppPiece); bestScore = - current.getScore(); bestMove = move; } if(bestScore>=beta){ return MoveScore(bestMove,bestScore); } adaptiveBeta = max(alpha, bestScore) + 1; } } return MoveScore(bestMove,bestScore); } If someone can please help by explaining how to get this to work with a simple stack. Example code would be much appreciated. While c++ would be perfect, any language that demonstrates how would be great. Thank You.

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