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• Should the test and the fix be written by different people?

  - by Nutel

  There is a common practice in TDD to write a test before fix to avoid regression and simplify fixing. I just wonder what if the test and fix will be written by different people, total spent time will be almost the same but as now three people will think about possible failures (+tester) we increase probability that fix will cover all possible failure scenarios. Does this practice make sense or it will just waste additional time needed for one more person to familiarize with bug?

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• How to Clear Metro Application Notifications at Log Off in Windows 8

  - by Taylor Gibb

  Sometimes in Windows 8 you may find your application notifications getting stuck from time to time, the fix to this problem is to clear the notification cache at log off, here’s how. Why Enabling “Do Not Track” Doesn’t Stop You From Being Tracked HTG Explains: What is the Windows Page File and Should You Disable It? How To Get a Better Wireless Signal and Reduce Wireless Network Interference

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• GDD-BR 2010 [0B] Maps API V3: New Features and How to Use them

  GDD-BR 2010 [0B] Maps API V3: New Features and How to Use them Speaker: Ossama Alami Track: Google APIs Time slot: B [11:15 - 12:00] Room: 0 Level: 201 The Javascript Maps API v3 is the future of the Google Maps API. Come learn why we built it, how to use it and about some exciting new features not available in V2. From: GoogleDevelopers Views: 2 0 ratings Time: 43:37 More in Science & Technology

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• What are the methods to estimate source code value?

  - by Antoine

  I've been working on some project on my free time for the past few months. Recently I've been approached by friends to build a startup, and this source code would be very valueable to us. As a co-founder, this code could count for something in the company's capital, and be exchanged for shares. But how can you estimate its value? Do you just multiply industry-standard wqges by the time I spent on it, or are there other methods?

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• Why doesn't file detect the mime-type of mp3 properly?

  - by Grumbel

  Something odd I recently encountered, running file --mime-type on a collection of MP3 gets the mime-time wrong a third of the time: $ for i in */*.mp3; do cat "$i"| file --mime-type -; done | sort | uniq -c 140 /dev/stdin: application/octet-stream 309 /dev/stdin: audio/mpeg There doesn't seem to be any obvious reason, as even MP3s from the same source, will sometimes fail and sometimes not. Bug, feature or anything obvious I am missing here?

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• On a BPM Mission with Process Accelerators. Part 1: BPM as an ATV

  - by Cesare Rotundo

  Normal 0 false false false EN-US X-NONE X-NONE /* 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-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; 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;} Part 1: BPM as an ATV It’s always exciting to talk to customers that are in the middle of a BPM transformational journey. Their thirst for new processes to improve with BPM makes them explorers in a landscape of opportunities. They have discovered that with BPM the can “go places” they couldn’t reach before. In a way, learning how to generate value with BPM is like adopting a new mean of transportation. Apps are like regular cars: very efficient, but to be used on paved roads: the road/process has been traced, and there are fixed paths to follow to get from “opportunity to quote” or from “quote to cash”. Getting off the road is risky, and laying down new asphalt is slow and expensive. Custom development is like running: you can go virtually anywhere, following any path you like, yet it’s slow, and a lot of sweat. BPM allows you to go “off the beaten path” laid out by packaged apps, yet make fast progress compared to custom development. BPM is therefore more like an All-Terrain Vehicle (ATV): less efficient than a car, but much faster than running, with a powerful enough engine that can get you places. The similarities between BPM and ATVs don’t stop here: you must learn to ride it even if you already know how to drive a car; you can reach places but figuring out the path to your destination is harder. Ultimately, with BPM as with an ATV, you reach places that you thought you could never reach, and you discover new destinations that provide great benefit to you … and that you didn’t even know existed! That’s where the sense of accomplishment that we heard from our BPM customers comes from, as well as the desire to share their experience, or even, as in the case of a County, the willingness to contribute their BPM solutions to help other agencies that face the same challenges. The question we wanted to answer is how can we teach organizations to drive ATV/BPM, thus leading them to deeper success with BPM, while increasing their awareness of the potential for reaching new targets, and finally equip them with the right tools. Like with ATVs, getting from point A to point B is more of a work of art than cruising on the highway by car. There is a lot we can do: after all many sought after destinations are common: someone else has been on the same path before. If only you could learn from their experience …

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• CheckBox in C#

  A CheckBox control allows users to select a single or multiple options from a list of options. In this article, I will discuss how to create a CheckBox control in Windows Forms at design-time as well as run-time.

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• Why are effect-less functions executed?

  - by user828584

  All the languages I know of would execute something like: i = 0 while i < 100000000 i += 1 ..and you can see it take a noticeable amount of time to execute. Why though, do languages do this? The only effect this code will have is taking time. edit: I mean inside a function which is called function main(){ useless() } function useless(){ i = 0 while i < 100000000 i += 1 }

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• How to restore/change Alt+Tab behaviour/ram usage and a few other things after Ubuntu upgrade from 11.04 to 11.10?

  - by fiktor

  I use Ubuntu for programming. I recently updated it from 11.04 to 11.10. There are some things I don't like in the new version of Unity desktop interface. I don't actually know if it is hard to restore previous behavior or not, and if it is not, where should I look to do that. I know a bit of programming, but I really don't know much about Linux settings. I used to have 3-6 terminal windows and switch between them with Alt+Tab and Shift+Alt+Tab. I liked half-transparent terminal windows, since with them I could open web-page with some instruction in Firefox, press Alt+Tab and type commands in a console window, being able to recognize text on a web-page under it. Now I have problems with my usual work-style because of the following. List of "negative" changes Alt+Tab shows just one icon for all console windows. When I wait some time, it, however, shows all windows, but I don't like to wait. I prefer to remember order of windows and press Alt+Tab as many times as I need to switch to the right window. Alt+Shift+Tab to switch in reverse order doesn't work now. Console windows are not transparent any more. When I don't wait, and switch to this icon, it shows all console windows altogether. So even if they were transparent, I wouldn't be able to see anything below them (I can read something only from the window, which is directly under current one, not a few levels under). When I run a few console windows in Unity I had 740Mb used on Ubuntu 11.04, but I have 1050Mb now. The question is how to make it back to 750-. I really need my memory, since I use my computer to work with 1512Mb of data and I try to save every 10Mb possible (if it doesn't take too much of machine and, more importantly, my time). When I press "The Super key" I have a field to type the name of the program I want to run. But now it sometimes shows this field, but when I'm trying to type nothing happens. Probably, focus is not on the right field. I don't really mean to restore exactly the same behavior, but I want to make my work in Ubuntu 11.10 efficient (at least as efficient as in Ubuntu 11.04). I would be happy if there are some ways to accomplish that. What have I tried I have installed CompizConfig Settings Manager. I have read this question. However enabling "Static Application Switcher" makes Alt+Tab crazy: after enabling it It says about key-binding conflicts with "Ubuntu Unity Plugin"; "Alt+Tab" switching doesn't change, but "Shift+Alt+Tab" now works and shows all windows; Memory usage increases. I have tried turning off Ubuntu Unity Plugin, but this doesn't seem right thing to do, since it seems to turn off all menus, a lot of keystrokes and app-launcher, which usually activates with "The Super key". I have found, that window transparency can be enabled by "Opacity, Brightness and Saturation" plugin from Accessibility. However I don't know if enabling it is the right thing to do (at least it increases memory usage). Update: everything solved but #3: see my own answer below. I have made a separate question about issue #3 (transparency).

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• 5 years of university education vs. 5 years of work experience - Which would you pick if hiring? [closed]

  - by gablin

  Say you need to hire a programmer. You have two candidates at your table: one has studied 5 years at uni (and holds a Master's degree, of course), but has no work experience; and the other holds no university degree but has worked for 5 years. Also assume that they both know the same programming languages, have about the same personality and spend equal amount of time programming on their spare time. If you only had this information to go on, which would you pick?

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• 2012 EC Election Ballot open; Meet the Candidates Call tomorrow

  - by heathervc

  The JCP Executive Committee (EC) Election ballot is now open and all of the candidates' nominations materials are now available on JCP.org -- note that two new candidates were nominated late last week:  Liferay and North Sixty-One. It is shaping up to be an exciting election this year! The ratified candidates are:  Cinterion, Credit Suisse, Fujitsu and HP.The elected candidates are (9 candidates, 2 open seats):  Cisco Systems, CloudBees, Giuseppe Dell'Abate, Liferay, London Java Community, MoroccoJUG, North Sixty-One, Software AG, and Zero Turnaround. Tomorrow, 18 October, we will hold an open teleconference for the Java Community to meet the candidates and ask questions regarding their nomination.  We hope you will be able to participate in the call.  Should the time be inconvenient, a recording will be made available for download, and candidate questions may be posted on this blog entry or sent to [email protected]. Topic: Meet the EC Candidates Date: Thursday, October 18, 2012 Time: 9:30 am, Pacific Daylight Time (San Francisco, GMT-07:00) Meeting Number: 807 818 225 Meeting Password: MeetEC ------------------------------------------------------- To join the online meeting (Now from mobile devices) ------------------------------------------------------- 1. Go to https://jcp.webex.com/jcp/j.php?ED=186721592&UID=0&PW=NMmUzNjY5ZTMw&RT=MiM0 2. If requested, enter your name and email address. 3. If a password is required, enter the meeting password: MeetEC 4. Click "Join". To view in other time zones or languages, please click the link: https://jcp.webex.com/jcp/j.php?ED=186721592&UID=0&PW=NMmUzNjY5ZTMw&ORT=MiM0 ------------------------------------------------------- To join the audio conference only -------------------------------------------------------     +1 (866) 682-4770     Outside the US: global access numbers  https://www.intercallonline.com/portlets/scheduling/viewNumbers/listNumbersByCode.do?confCode=6279803 or +1 (408) 774-4073     Conference code: 9454597     Security code: JCPEC (52732)------------------------------------------------------- For assistance ------------------------------------------------------- 1. Go to https://jcp.webex.com/jcp/mc 2. On the left navigation bar, click "Support".

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• Top SEO Tips - Get Google to Crawl Your Website in Less Than 24 Hours

  No matter if you are a website owner or internet marketing professional it is important to work with Google and from time to time you will need to get Google to crawl yours or you clients website ASAP. This could be for many reasons, one being that your client has changed their domain name or you are launching a new or improved website.

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• How to mount ntfs partitions on startup?

  - by Levan

  I now this question has been asked a million times but this is a bit different, now I need to know on how to mount it on ubuntu 12.10 I been using PYSDM for a long time but on ubuntu 12.10 it does not work sadly, I installed arios-automount and it mounted partitions on start up but problem i have with it, on start up it launches all the partition window So can anyone tell me a good mount manager for ubuntu 12.10 with graphical user interface thank you for your time

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• SEO Training - How to Get the Basics Right

  I guess it's time to cut the crud and get down to the real meat of what this SEO stuff is about. Time for someone to explain how to do it yourself in a way that won't have you going around in circles thinking it's all a bit of a dark art. This, then, is that article and I am that person who will tell you in nice easy terms how to get your site all 'SEO' friendly in a simple way. No jargon allowed - it's for newbies only!

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• High traffic chat - how to check if there is new message and show it for all users

  - by user2633999

  I already had question about this but obviously it was not accepted very well, apparently too long when it's actually more information so you could have given me better answer. Ok, I will be much clearer now. Best possible logic to develop scalable chat in terms of stability, storing/reading messages on chat, updating chat on new message for all users etc.? I have most of this developed, the logic I think I miss is -- check if there is new message and show it for all users. I have this implemented but it crashes the site due to its traffic of 300k-400k people, so that's my main question. The chat is PHP based and uses Pusher (www.pusher.com) for instant messaging but it lacks what I need because it's more like a websocket. I'm using hardcoded files to keep messages (want to avoid database as much as possible). It's a no extension type of file, I'm sure you know. I'm getting crash with $fp = fopen(..., "w"); // pretend ... is the path and filename fwrite($fp, $msg); //hardcode the message fclose($fp); where $msg is the message itself. I'm having 1 file per message. I show last 150 messages = 150 file accesses and reads, yeah it's too much I guess. I have better logic now which I'm pursuing and that is 1 file with last 50-100 messages at all time. Sure it should be much better. How does it crash, that's the trickiest part because everything seems ordinary, believe me it is difficult to determine what exactly crashes the site, but in like 5 minutes when I try to open the site it's gone, then I put the old content without chat and is back online again. I'm having jquery post every 1 second to check if there is new message. I'm using timestamp in a special file where I keep the time last message was sent and if ((time() - time in file) <= 2) = reload last 150 messages including the last one. Too much input/output, write/read or however to say it I think is what crashes the site.

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• Create Your Website Without the Codes With the Easiest Website Building Software

  These days, people choose to have everything done instantly, especially the work processes. One cannot blame them for choosing easy and convenient ways for their everyday tasks since time has become a major concern. Most individuals try to avoid time-consuming and complicated tasks as much as possible. Online processes are not even spared.

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• Crash During Update Deleted ALL panels; can't open terminal; can't see icons

  - by Evan

  So I was upgrading Ubuntu from 11.10 to 12.04 in the terminal after recovering my system from a previous crash, and then I go through a power outage during the second time trying to update. NOW, my screen is white, only the time shows up in the top right corner, no icons show up, no apps show up, AND terminal is NOT opening. I can still use the internet somehow, and ctrl + alt + F2 opens what I think is a back-up terminal? NEED HELP to recover what is lost.

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• How to be successfull at BDD Specifications Workshops?

  - by sigo

  Today we tried to introduce BDD in our software development process by having a specification workshop. For this workshop we had 2 developers, 1 tester and 1 business analyst. The workshop lasted 1h30 and by the end of it we managed to figure out some BDD scenarios for our new feature. We tried to focus on finding the scenarios that we could miss, and the difficult ones. At the end of the workshop some people were actually unhappy with the workshop. One developer felt he wasted his time as he was used to be given out the scenarios directly by the business analyst and review them with her. The business analyst didn't feel confident with our scenario coverage (Had a feeling that we could have missed out other important stuff) but more importantly felt that this workshop was also a waste of time as she could have figured out all these scenarios by herself and in a shorter period of time. So my question is how that kind of workshop can actually work. In the theory, given you have a new feature to develop, you put the tree 'amigos' (dev/tester/ba) in the same room so that they can collaborate together on writing the differents requirements for the new feature using examples. I can see all the benefits from that. Specially in term of knowledge sharing and common product/end goal/done vision. But in practice, we still think it is more cost effective to first have a BA to work on his own on the examples and only then to have the scenarios to be reviewed/reworked by the 3 'amigos'. By having the BA to work on his own, we actually feel more confident that we are less going to miss out stuff + we still get to review the scenarios afterward to double check. We don't think than simple brainstorming/deliberate discovery is actually enought to seriously cover all the requirement for a feature. The business analyst is actually the best person for that kind of stuff. The thing we just do is to review what she wrote and see if then we have a common understanding (which could then lead to rewrite some of her scenarios or add new ones she could have missed). This workshop lasted 1h30, and by the end of it, we didn't feel confident enought about wha we did...sure we could have spent more time on it but honestly most people get exhausted after 1h30 of brainstorming. So how can you get that to work effectively in practice ?

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• A Look at Keyword Search Optimization

  With the great influence of the Internet on a growing number of consumers these days, online marketing is now considered one of the best, if not the best, way to promote a business. This strategy offers greater possibilities for a business to be known enough to generate increasing revenues. Pinpointing the exact right techniques, however, will take some brainstorming which could be a critical stage because it requires a lot of time for marketers to determine on which tricks are, indeed, going to work and which will be a waste of time.

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• What's Your Web Page Speed?

  A web page speed is also referred to as the "page-load time". It is simply the amount of time that it takes for the pages of your website to load or become visible, once a user requests them.

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• Can't ping Ip over bridge

  - by tmn29a

  I'm unable to ping another host over a bridge I created, I can't see the error -.- It's a remote machine running debian stable with some backports for which I want to set up DHCP on the new Subnet 172.30.xxx.xxx to be used for KVM-Guests. ifconfig : bond0 Link encap:Ethernet HWaddr e4:11:5b:d4:94:30 inet addr:10.54.2.84 Bcast:10.54.2.127 Mask:255.255.255.192 inet6 addr: fe80::e611:5bff:fed4:9430/64 Scope:Link UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1 RX packets:34277 errors:0 dropped:0 overruns:0 frame:0 TX packets:18379 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:2638709 (2.5 MiB) TX bytes:2887894 (2.7 MiB) br0 Link encap:Ethernet HWaddr f2:fc:4d:7f:15:f0 inet addr:172.30.254.66 Bcast:172.30.254.127 Mask:255.255.255.192 inet6 addr: fe80::f0fc:4dff:fe7f:15f0/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:252 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:10800 (10.5 KiB) Pings : ping -I br0 172.30.xxx.65 PING 172.30.xxx.65 (172.30.xxx.65) from 172.30.xxx.66 br0: 56(84) bytes of data. --- 172.30.xxx.65 ping statistics --- 3 packets transmitted, 0 received, 100% packet loss, time 2017ms ping -I bond0 172.30.254.65 PING 172.30.xxx.65 (172.30.xxx.65) from 10.54.2.84 bond0: 56(84) bytes of data. 64 bytes from 172.30.x.65: icmp_req=1 ttl=64 time=0.599 ms 64 bytes from 172.30.x.65: icmp_req=2 ttl=64 time=0.575 ms 64 bytes from 172.30.x.65: icmp_req=3 ttl=64 time=0.565 ms --- 172.30.x.65 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 1999ms rtt min/avg/max/mdev = 0.565/0.579/0.599/0.031 ms Route : Destination Gateway Genmask Flags Metric Ref Use Iface 172.30.x.64 * 255.255.255.192 U 0 0 0 br0 10.54.x.64 * 255.255.255.192 U 0 0 0 bond0 default 10.54.x.65 0.0.0.0 UG 0 0 0 bond0 default 172.30.x.65 0.0.0.0 UG 0 0 0 br0 The Interface : cat /etc/network/interfaces auto lo br0 iface lo inet loopback # Bonding Interface auto bond0 iface bond0 inet static address 10.54.x.84 netmask 255.255.255.192 network 10.54.x.64 gateway 10.54.x.65 slaves eth0 eth1 bond_mode active-backup bond_miimon 100 bond_downdelay 200 bond_updelay 200 iface br0 inet static bridge_ports bond0 address 172.30.x.66 broadcast 172.30.x.127 netmask 255.255.x.192 gateway 172.30.x.65 bridge_maxwait 0 If you need more info please ask. Thanks for your help !

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• Will low level programms become obsolete once the "post-performance" world arives? [closed]

  - by nbv4

  With the new iPhone 5 being as powerful as the supercomputers of the 1980s, its only a matter of time when the latest phones will be powerful enough to run a twitter-scale web application from within my pocket. When that time comes, performance will no longer be something programmers need to care about. Will low level languages still have a place? Or will everyone move to dynamic languages like Python?

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• On ESXi, guest machines hang for significant intervals compared to real machines. How can I fix this?

  - by Tarbox

  This is ESXi version 5.0.0. We plan on upgrading to 5.5 eventually. I have four code profiles, two taken on a real, unvirtualized machine, two taken on a virtual machine. Ordering the list of subroutines by time spent in each one, the two real profiles are practically identical. The two virtual profiles are different from each other and from the real profiles: a subset of subroutines are taking a lot more time on the virtual machines, and the subset is different for each run. The two virtual profiles take a similar amount of time, which is 3 times the amount of time the real profiles take. This gross "how long does it take?" result is consistent after hundreds of tests across three different virtual machines on two different host machines -- the virtual machine is just slower. I've only the code profiling on the four, however. Here's the most guilty set of lines: This is the real machine: 8µs $text = '' unless defined $text; 1.48ms foreach ( split( "\n", $text ) ) { This is the first run on the virtual machine: 20.1ms $text = '' unless defined $text; 1.49ms foreach ( split( "\n", $text ) ) { This is the second run on the virtual machine: 6µs $text = '' unless defined $text; 21.9ms foreach ( split( "\n", $text ) ) { My WAG is that the VM is swapping out the thread and then swapping it back in, destroying some level of cache in the process, but these code profiles were taken when the vm in question was the only active vm on the host, so... what? What does that mean? The guest itself is under light load, this is a latency problem for my users rather than throughput. The host is also under a light load, if I knew what resources to assign where, I could do it without worrying about the cost. I've attempted to lock memory, reserve cpu, assign a restrictive affinity, and disable hyperthread sharing. They don't help, it still takes the VM 2-4x the amount of time to do the same thing as the real machine. The host the tests were run on is 6x2.50GHz, Intel Xeon E5-26400 w/ 16gigs of ram. The guest exhibits the same performance under a wide combination of settings. The real machine is 4x2.13GHz, Xeon E5506 w/ 2 gigs of ram. Thank you for all advice.

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• Flags with deferred use

  - by Trenton Maki

  Let's say I have a system. In this system I have a number of operations I can do but all of these operations have to happen as a batch at a certain time, while calls to activate and deactivate these operations can come in at any time. To implement this, I could use flags like doOperation1 and doOperation2 but this seems like it would become difficult to maintain. Is there a design pattern, or something similar, that addresses this situation?

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• Reflecting on week long Training with SQLSkills

  - by NeilHambly

  Time for a quick reflection on my 5-day's training with SQLSkills, they have 4 weeks in their immersion training program, this was week 1: Internals & Performance held @ large Heathrow Hotel http://www.sqlskills.com/T_ImmersionInternalsDesign.asp So was the Course worth the Time and Money... undoubtedly, I believe we had a large number of the people there also self-funding along with the lucky corporate sponsored ones. It was akin to doing say the "London marathon" in that you know...(read more)

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