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  • What can be done to decrease the number of live issues with applications?

    - by User Smith
    First off I have seen this post which is slightly similar to my question. : What can you do to decrease the number of deployment bugs of a live website? Let me layout the situation for you. The team of programmers that I belong to have metrics associated with our code. Over the last several months our errors in our live system have increased by a large amount. We require that our updates to applications be tested by at least one other programmer prior to going live. I personally am completely against this as I think that applications should be tested by end users as end users are much better testers than programmers, I am not against programmers testing, obviously programmers need to test code, but they are most of the times too close to the code. The reason I specify that I think end users should test in our scenario is due to the fact that we don't have business analysts, we just have programmers. I come from a background where BAs took care of all the testing once programmers checked off it was ready to go live. We do have a staging environment in place that is a clone of the live environment that we use to ensure that we don't have issues between development and live environments this does catch some bugs. We don't do end user testing really at all, I should say we don't really have anyone testing our code except programmers, which I think gets us into this mess (Ideally, we would have BAs or QA or professional testers test). We don't have a QA team or anything of that nature. We don't have test cases for our projects that are fully laid out. Ok, I am just a peon programmer at the bottom of the rung, but I am probably more tired of these issues than the managers complaining about them. So, I don't have the ability to tell them you are doing it all wrong.....I have tried gentle pushes in the correct direction. Any advice or suggestions on how to alleviate this issue ?

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  • EPM Patch Set Updates - May 2014

    - by Paul Anderson -Oracle
    .PSU_DocID { font-family: Arial, Helvetica, sans-serif; font-size: 9px; font-style: normal; } .PSU_PatchID { font-family: Arial, Helvetica, sans-serif; font-size: 11px; font-style: normal; } The following is Enterprise Performance Management (EPM) Patch Set Updates (PSU) released last month (May 2014).  The "Patch" ID links will access the patch directly for download from "My Oracle Support" (login required). Oracle Hyperion 11.1.2.3.x Hyperion Essbase Studio Server 11.1.2.3.501 - Patch 18505506 Hyperion Essbase Studio Console MSI 11.1.2.3.501 - Patch 18505503 Oracle Hyperion Profitability and Cost Management 11.1.2.3.501 - Patch 18685108 Hyperion Strategic Finance 11.1.2.3.501 - Patch 18400594 Hyperion Essbase Admin Services Server 11.1.2.3.501 - Patch 18505475 Hyperion Essbase Admin Services Console MSI 11.1.2.3.501 - Patch 18505468 Hyperion Essbase RTC 11.1.2.3.501 - Patch 18505499 Hyperion Essbase Server 11.1.2.3.501 - Patch 18505489 Hyperion Essbase Client 11.1.2.3.501 - Patch 18505494 Hyperion Essbase Client MSI 11.1.2.3.501 - Patch 18505483 Hyperion Analytic Provider Services 11.1.2.3.501 - Patch 18505515 Oracle Hyperion 11.1.2.2.x Hyperion Financial Management 11.1.2.2.307 - Patch 18490422 NOTE: Some patches listed may have been released a few days outside of the stated month. To view the patches released over previous months visit the earlier Blog posts: April 2014 EPM PSU Released March 2014 EPM PSU Released February 2014 EPM PSU Released January 2014 EPM PSU Released For the latest Enterprise Performance Management Patch Set Updates visit: Oracle Hyperion EPM Products [Doc ID 1400559.1] Be sure to review the related Readme files available per Patch Set Update.

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  • TechEd India Recap

    Last week I spoke at TechEd India and the Visual Studio 2010 launch. It was a great event with over 3,000 attendees, far more than attended the Visual Studio launch in Las Vegas! Senior vice president of the Developer Division at Microsoft, S. Somasegar, did an awesome keynote. I did three sessions: Building applications with OData Building Line of Business Applications with WCF and Silverlight 4.0 Building Silverlight Business Applications with RIA Services Something happened to me that never happened before in my 13+ years of being a professional international speaker: I lost my voice! I was in Indonesia the week before and picked up a small bug and had no voice. This was a new challenge for me, and Microsoft offered to cancel my sessions, but I figured why would I let no voice stop me from delivering my sessions!! So I decided to throw away the slides and just code. I had no voice anyway, ...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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  • Kubuntu Monitor Out of Range

    - by uncleo
    My X server seems to be faulty, but I don't know why. I had some problems last week with a new motherboard, but they seemed to be resolved. Today, I updated Kubuntu and restarted, but my Viewsonic VX900 LCD monitor shows the splash screen for several seconds, then displays the message "Out of Range" I have tried various kernels in Grub, some in recovery mode, most do the same thing. No key combinations bring up a shell prompt like I expect. The one exception was a very old kernel, that would only mount the file system as read-only, so I can't fix up the xorg.conf file. Is there anything to be done?

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  • Vector vs Scalar velocity?

    - by Serguei Fedorov
    I am revamping an engine I have been working on and off on for the last few weeks to use a directional vector to dictate direction; this way I can dictate the displacement based on a direction. However, the issue I am trying to overcome is the following problem; the speed towards X and speed towards Y are unrelated to one another. If gravity pulls the object down by an increasing velocity my velocity towards the X should not change. This is very easy to implement if my speed is broken into a Vector datatype, Vector.X dictates one direction Vector.Y dictates the other (assuming we are not concerned about the Z axis). However, this defeats the purpose of the directional vector because: SpeedX = 10 SpeedY = 15 [1, 1] normalized = ~[0.7, 0.7] [0.7, 0.7] * [10, 15] = [7, 10.5] As you can see my direction is now "scaled" to my speed which is no longer the direction that I want to be moving in. I am very new to vector math and this is a learning project for me. I looked around a little bit on the internet but I still want to figure out things on my own (not just look at an example and copy off it). Is there way around this? Using a directional vector is extremely useful but I am a little bit stumped at this problem. I am sorry if my mathematical understanding maybe completely wrong.

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  • Apache Prepending Header Information to ALL FILES

    - by Michael Robinson
    We're in the middle of setting up new servers, and have been having some odd problems with Apache. Apache is prepending text that looks like this: $15plðI‚‚?E?ðA™@?@??yeÔ|~Ÿ²?PγZ" zS€?8i³?? ,ÀŠ{ÿBHTTP/1.1 200 OK Date: Mon, 02 Feb 2009 22:28:05 GMT Server: Apache/2.2.3 (CentOS) Last-Modified: Mon, 02 Feb 2009 22:28:05 GMT ETag: W/"1238007d-2224e-fe617f40" Accept-Ranges: bytes Content-Length: 139854 Connection: close Content-Type: application/x-javascript To all files. The file I copied the above text from is the prototype library js file. As loaded from our server. I've searched, but couldn't find much about this problem Maybe I don't know what I'm searching for... Anyway, if anyone has seen this behaviour before, could they please let me know either 1) how to fix it so that this content is not prepended to all files, or 2) where to look for further help. Thanks

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  • How do I create my own programming language and a compiler for it

    - by Dave
    I am thorough with programming and have come across languages including BASIC, FORTRAN, COBOL, LISP, LOGO, Java, C++, C, MATLAB, Mathematica, Python, Ruby, Perl, Javascript, Assembly and so on. I can't understand how people create programming languages and devise compilers for it. I also couldn't understand how people create OS like Windows, Mac, UNIX, DOS and so on. The other thing that is mysterious to me is how people create libraries like OpenGL, OpenCL, OpenCV, Cocoa, MFC and so on. The last thing I am unable to figure out is how scientists devise an assembly language and an assembler for a microprocessor. I would really like to learn all of these stuff and I am 15 years old. I always wanted to be a computer scientist some one like Babbage, Turing, Shannon, or Dennis Ritchie. I have already read Aho's Compiler Design and Tanenbaum's OS concepts book and they all only discuss concepts and code in a high level. They don't go into the details and nuances and how to devise a compiler or operating system. I want a concrete understanding so that I can create one myself and not just an understanding of what a thread, semaphore, process, or parsing is. I asked my brother about all this. He is a SB student in EECS at MIT and hasn't got a clue of how to actually create all these stuff in the real world. All he knows is just an understanding of Compiler Design and OS concepts like the ones that you guys have mentioned (ie like Thread, Synchronisation, Concurrency, memory management, Lexical Analysis, Intermediate code generation and so on)

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  • Harddrive in the freezer ever work for you?

    - by Stefan Thyberg
    Once upon a time, my little 10 GB drive in my webserver failed and of course I had no backup, teaching me to immediately set up an automatic backup job afterwards. Anyhow, this drive refused to start and as a last-ditch effort I put it in a plastic bag and put it in the freezer overnight, since I had heard somewhere that it might work and I really didn't have any other options. The next day I take it out, immediately plug it in outside the case and lo and behold, the drive works long enough for me to copy my data off it. Have you ever had a similar experience with this method?

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  • hdmi audio works only with aplay -D alsa test wavs; open source radeon drivers; kernel 3.5 vgaswitcheroo

    - by user108754
    I've trolled the internets to make hdmi work on my system Ubuntu 12.04 software center kernel 3.5 uname: Linux ubuntu 3.5.0-18-generic #29~precise1-Ubuntu SMP...x86_64 x86_64 x86_64 GNU/Linux open source radeon drivers vgaswitcheroo (hybrid intel/radeon gpu): I boot with intel, not radeon, running. (and recall that with kernel 3.5, vgaswitcheroo now gives info on a third item, "DIS-Audio"; it indicates pwr on my system) ( /etc/rc.local: chown user:user /sys/kernel/debug/ # change "username" with your user name echo OFF /sys/kernel/debug/vgaswitcheroo/switch ) grub indeed now has "radeon.audio=1" for testing audio, I did aplay -l which gave me the card and device, which made me try aplay -D plughw:1,3 /usr/share/sounds/alsa/Front_Center.wav and lo! I get crystal clear sound on my hdtv. If I play an mp3 file as the argument to that command, I get noise as, I guess, aplay interprets the mp3 code as a wav. If I play a .wav that is not in the /usr/share/sounds/alsa/ directory, I get nothing. Internet flash video in browser plays no sound over hdmi. Both system sounds control and pavucontrol have hdmi cedar selected. Alas, I can not get sound for any gui test (left, right). Why would only aplay, and only when directed with "-D plughw", yield sound over hdmi? I've also tried only using one sound program at a time, if it was a limitation of alsa, so I tried aplay with web browser and even the sound control gui closed. I tried each of the last two, running alone. No improvement. alsamixer only shows hda intel and I think it's only the intel audio, not the hdmi.

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  • Optimize Many-to-Many with SUMMARIZE and Other Techniques

    - by Marco Russo (SQLBI)
    We are still in the early days of DAX and even if I have been using it since 2 years ago, there is still a lot to learn on that. One of the topics that historically interests me (and many of the readers here, probably) is the many-to-many relationships between dimensions in a dimensional data model. When I and Alberto wrote the The Many to Many Revolution 2.0 we discovered the SUMMARIZE based pattern very late in the whitepaper writing. It is very important for performance optimization and it should be always used. In the last month, Gerhard Brueckl also presented an approach based on cross table filtering behavior that simplify the syntax involved, even if it’s harder to explain how it works internally. I published a short article titled Optimize Many-to-Many Calculation in DAX with SUMMARIZE and Cross Table Filtering on SQLBI website just to provide a quick reference to the three patterns available. A further study is still required to compare performance between SUMMARIZE and Cross Table Filtering patterns. Up to now, I haven’t observed big differences between them, even if their execution plans might be not identical and this suggest me that depending on other conditions you might favor one over the other.

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  • Syntax Highlight and Autocomplete in Geany for GTK+ (C)

    - by Prasanna Choudhari
    I have just started GTK+ coding in C. I was curious whether i can get syntax highlight and auto-completion working for my GTK code... because as a beginner it would be helpful. I was completely convinced that it was not possible until i came across this video on youtube: https://www.youtube.com/watch?v=AyeQrO1VDFM&feature=plcp I asked the uploader for help, but turns out his last activity on youtube was in Septembeer :( I also tried opening the gtk.h file with geany as i had read somewhere that it worked, but unfortunately it didn't work too. Any help? :'(

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  • How do I fix the HDMI/DVI display output with Intel HD 4000 Graphics in 12.04?

    - by YumYumYum
    I have an Alienware Dell PC with Intel HD 4000 Graphics (Ivy Bridge) as verified by the output of lspci | grep VGA posted below. 00:02.0 VGA compatible controller: Intel Corporation Ivy Bridge Graphics Controller (rev 09) The PC only has HDMI and DVI display outputs and using the HDMI output I am only being offered abnormal resolutions. As you can see below it does not even list HDMI1 or DVI1 but just only a fallback. $ export DISPLAY=:0.0 && xrandr xrandr: Failed to get size of gamma for output default Screen 0: minimum 640 x 480, current 1360 x 768, maximum 1360 x 768 default connected 1360x768+0+0 0mm x 0mm 1360x768 0.0* 1024x768 0.0 800x600 0.0 640x480 0.0 How can I fix this? Does it just need to be configured differently or will I need to use a newer kernel (as Intel Graphics drivers are included in the kernel)? Follow up: kernel to latest Step 1: Go to: http://kernel.ubuntu.com/~kernel-ppa/mainline/ Go to last: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.6-rc3-quantal/ Download: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.6-rc3-quantal/linux-headers-3.6.0-030600rc3-generic_3.6.0-030600rc3.201208221735_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.6-rc3-quantal/linux-headers-3.6.0-030600rc3_3.6.0-030600rc3.201208221735_all.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.6-rc3-quantal/linux-image-3.6.0-030600rc3-generic_3.6.0-030600rc3.201208221735_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.6-rc3-quantal/linux-image-extra-3.6.0-030600rc3-generic_3.6.0-030600rc3.201208221735_amd64.deb Step 2: sudo dpkg -i linux*.deb Step 3: reboot which shows that i have Ubuntu 12.04 with latest $ uname -a Linux sun-Alienware-X51 3.6.0-030600rc3-generic #201208221735 SMP Wed Aug 22 21:36:32 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux But still same problem remain.

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  • Installation problems with Gimp 2.8 on Kubuntu 12

    - by Martyn
    I've just upgraded to Kubuntu 12.04 and having problems installing Gimp 2.8, I was wondering if anyone can help me? I've followed these instructions: sudo add-apt-repository ppa:otto-kesselgulasch/gimp sudo apt-get update sudo apt-get install gimp but get this error: The following packages have unmet dependencies. gimp : Depends: libwebkitgtk-1.0-0 (>= 1.3.10) but it is not going to be installed E: Unable to correct problems, you have held broken packages. I've tried running these and trying again with the same problems: sudo apt-get clean sudo apt-get autoremove sudo apt-get update sudo apt-get upgrade sudo apt-get -f install also running sudo apt-get install libwebkitgtk-1.0-0 gives me this error The following packages have unmet dependencies. libwebkitgtk-1.0-0 : Depends: libgail18 (>= 1.18.0) but it is not going to be installed E: Unable to correct problems, you have held broken packages. and then running sudo apt-get install libgail18 gives me this error The following packages have unmet dependencies. libgail18 : Depends: libgtk2.0-0 (= 2.24.10-0ubuntu6) but 2.24.10-1oneiric6~ppa is to be installed E: Unable to correct problems, you have held broken packages. The bit that caught my attention was but 2.24.10-1oneiric6~ppa is to be installed - but I don't know what to do with this. I've rebooted and the error messages are the same. Can anyone help? ** EDIT ** I've found someone with the same problem, unfortunately the link is in German so I can't completely understand what the solution (last post) is - here's the google translated link : http://translate.google.com/translate?sl=auto&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&layout=2&eotf=1&u=http%3A%2F%2Fwebcache.googleusercontent.com%2Fsearch%3Fq%3Dcache%3A1U2Uat6XqUsJ%3Aforum.ubuntuusers.de%2Ftopic%2Fprobleme-nach-update-fehlerhafte-pakete-aus-on%2F%2B%26cd%3D3%26hl%3Den%26ct%3Dclnk%26gl%3Duk&act=url

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  • Thinking skills to be a good programmer

    - by Paul
    I have been programming for last 15 years with non-CS degree. Main reason I got into programming was that I liked to learn new things and apply them to my work. And I was able to find and fix programming errors and their causes faster than others. But I never find myself a a guru or an expert, maybe due to my non-CS major. And when I saw great programmers, I observed they are very good, much better than me of course, at solving problems. One skill I found good in my mid-career is thinking of requirements and tasks in a reverse order and in abstract. In that way, I can see what is really required for me to do without detail and can quickly find parts of solution that already exist. So I wonder if there are other thinking skills to be a good programmer. I've followed Q&As below and actually read some of books recommended there. But I couldn't really pickup good methods directly applicable for my programming work. What non-programming books should a programmer read to help develop programming/thinking skills? Skills and habits to develop to be good at programming (I'm a newbie)

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  • How to move ubuntu 12.04 on another drive

    - by Maksim
    How I can move my ubuntu on another drive? I know about clonezilla but problem is that destination drive is smaller the source one. Gparted can't copy-paste partition if destination not the end last partition. I tried dpkg --selected-packages and apt-clone. First one just not install all my packages and removed existed that now I have no full unity and not my all packages. Second one just fail on configuration package. But before I did that way I copy-paste my /etc to new system. My partition table destination : gpt 1 1049kB 106MB 105MB fat32 EFI System ??????????? 2 106MB 12,1GB 12,0GB ext4 3 12,1GB 66,3GB 54,2GB ext4 source: msdos 1 1049kB 12,0GB 12,0GB primary ext4 ??????????? 2 12,0GB 492GB 480GB primary ext4 3 492GB 500GB 8107MB primary linux-swap(v1) Gpt not working with ubuntu that use grub 1.99. I don't know why but my laptop can't boot any device with uefi just black screen and ubuntu detect it on fresh install.

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  • Oracle BPM overview and roadmap session on Monday, October 1st

    - by Manoj Das
    Bhagat Nainani and I, Manoj Das, will present a session on Oracle BPM overview and road map on Monday, October 1 2012, from 12:15-1:15 PM at Moscone South - 308. Since last OpenWorld, many good things have happened. Many customers have gone live with their BPM 11g deployments, some of whom were nominated for the Innovation Awards. From a product perspective, we delivered 11.1.1.6 and 11.1.1.7 is just around the corner. We will discuss some of the highlights related to both customer successes and product features. In particular, we will present some of the exciting new capabilities that we are introducing in 11.1.1.7 around business analyst driven model-to-execution, more comprehensive unified BPM suite, more flexible and manageable BPM. Another significant development is the release of Process Accelerators. We have not only released accelerators, we have ourselves deployed and are using them internally. We will talk about accelerators as well as our learnings. As the title suggests, we will also share some aspects of our roadmap - there are some very exciting things brewing that I can't wait to share with you on Monday. Hoping to see you on Monday. Again, the session is in Moscone South - 308 from 12:15-1:15. Looking forward to your tweets on the session - remember to use #oraclebpm and #oow. Finally, as always, feel free to ask Bhagat and me any questions you have, during the session as well as after the session.

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  • How to Set Up a MongoDB NoSQL Cluster Using Oracle Solaris Zones

    - by Orgad Kimchi
    This article starts with a brief overview of MongoDB and follows with an example of setting up a MongoDB three nodes cluster using Oracle Solaris Zones. The following are benefits of using Oracle Solaris for a MongoDB cluster: • You can add new MongoDB hosts to the cluster in minutes instead of hours using the zone cloning feature. Using Oracle Solaris Zones, you can easily scale out your MongoDB cluster. • In case there is a user error or software error, the Service Management Facility ensures the high availability of each cluster member and ensures that MongoDB replication failover will occur only as a last resort. • You can discover performance issues in minutes versus days by using DTrace, which provides increased operating system observability. DTrace provides a holistic performance overview of the operating system and allows deep performance analysis through cooperation with the built-in MongoDB tools. • ZFS built-in compression provides optimized disk I/O utilization for better I/O performance. In the example presented in this article, all the MongoDB cluster building blocks will be installed using the Oracle Solaris Zones, Service Management Facility, ZFS, and network virtualization technologies. Figure 1 shows the architecture:

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  • NT4 server generate too much weird DNS queries, How can i see the source PID?

    - by Hanan N.
    I have a NT4 server that in the last two weeks started to generate too many weird DNS queries to the DNS server is set to use. I have got warnings from the IPS system that it has blocked the responses from the DNS server back to the NT4 server. The queries it generate doesn't relate to any computer in the network, it is like 120624100088.xxxxxxx.net where xxx is the internal network, the numbers are just random at each query. I have done some research on how to get the PID that is generating the queries, and i found that only Process Monitor could give me that information, but since it is NT4 system Process Monitor doesn't work on it. It is a production server and i am just can't stop services as i want. I would like to get your advice on how can i get the PID that is generating these queries? Thanks.

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  • Parse java console output with awk

    - by Bob Rivers
    Hi, I'm trying to use awk to parse an output generated by a java application, but it isn't working. It seems that the command after the pipe isn't able to get/see the data throwed by the java app. I'm executing the following command (with the return generated by the command): [root@localhost]# java -jar jmxclient.jar usr:pass host:port java.lang:type=Threading ThreadCount 06/11/2010 15:46:37 -0300 org.archive.jmx.Client ThreadCount: 103 What I need it's only the last part of the string. So I'm tryng to use awk (with pipe at the end of the line |awk -F ':' '{print $4}': [root@localhost]# java -jar jmxclient.jar usr:pass host:port java.lang:type=Threading ThreadCount|awk -F ':' '{print $4}' But the output isn't being parsed. It throws the entire string: 06/11/2010 15:46:37 -0300 org.archive.jmx.Client ThreadCount: 103 I also tryed to use |cut -f4 -d":" with the same result: the string isn't parsed. So my question is, how do I parse the output in order to get just the number at the end of the string? TIA, Bob

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  • How do you check Driver Verifier logs on Windows 7 after catching a faulty driver?

    - by Wolf
    I kept getting BSODs on a clean install of Windows 7 (plus updates), so I decided to run Driver Verifier. I had to select all drivers, since it didn't catch the culprit when I didn't include Microsoft drivers. I know it is not a hardware problem since everything is working fine on Linux and memtest86+ is not reporting any errors in the RAM (8 GB). This time, it caught the faulty driver and gave me a BSOD telling me so. Using WhoCrashed, I could verify what was the last error message with the parameters and the source. Yet, the source is always the kernel (ntoskrnl.exe) and the bugcheck this time was 0xC4 (0x85, 0xFFFFF9804429AFC0, 0x2, 0x11B948). After searching on the web, I found out "the driver called MmMapLockedPages without having locked down the MDL pages." As I am not developing any driver, this is of no use to me. However, I would like to know which driver caused Driver Verifier to trigger an alert, so I can either disable it, or rollback to a previous version in order not to get crashes anymore.

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  • How can I improve my isometric tile-picking algorithm?

    - by Cypher
    I've spent the last few days researching isometric tile-picking algorithms (converting screen-coordinates to tile-coordinates), and have obviously found a lot of the math beyond my grasp. I have come fairly close and what I have is workable, but I would like to improve on this algorithm as it's a little off and seems to pick down and to the right of the mouse pointer. I've uploaded a video to help visualize the current implementation: http://youtu.be/EqwWcq1zuaM My isometric rendering algorithm is based on what is found at this stackoverflow question's answer, with the exception that my x and y axis' are inverted (x increased down-right, while y increased up-right). Here is where I am converting from screen to tiles: // these next few lines convert the mouse pointer position from screen // coordinates to tile-grid coordinates. cameraOffset captures the current // mouse location and takes into consideration the camera's position on screen. System.Drawing.Point cameraOffset = new System.Drawing.Point( 0, 0 ); cameraOffset.X = mouseLocation.X + (int)camera.Left; cameraOffset.Y = ( mouseLocation.Y + (int)camera.Top ); // the camera-aware mouse coordinates are then further converted in an attempt // to select only the "tile" portion of the grid tiles, instead of the entire // rectangle. this algorithm gets close, but could use improvement. mouseTileLocation.X = ( cameraOffset.X + 2 * cameraOffset.Y ) / Global.TileWidth; mouseTileLocation.Y = -( ( 2 * cameraOffset.Y - cameraOffset.X ) / Global.TileWidth ); Things to make note of: mouseLocation is a System.Drawing.Point that represents the screen coordinates of the mouse pointer. cameraOffset is the screen position of the mouse pointer that includes the position of the game camera. mouseTileLocation is a System.Drawing.Point that is supposed to represent the tile coordinates of the mouse pointer. If you check out the above link to youtube, you'll notice that the picking algorithm is off a bit. How can I improve on this?

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  • Object pools for efficient resource management

    - by GameDevEnthusiast
    How can I avoid using default new() to create each object? My previous demo had very unpleasant framerate hiccups during dynamic memory allocations (usually, when arrays are resized), and creating lots of small objects which often contain one pointer to some DirectX resource seems like an awful lot of waste. I'm thinking about: Creating a master look-up table to refer to objects by handles (for safety & ease of serialization), much like EntityList in source engine Creating a templated object pool, which will store items contiguously (more cache-friendly, fast iteration, etc.) and the stored elements will be accessed (by external systems) via the global lookup table. The object pool will use the swap-with-last trick for fast removal (it will invoke the object's ~destructor first) and will update the corresponding indices in the global table accordingly (when growing/shrinking/moving elements). The elements will be copied via plain memcpy(). Is it a good idea? Will it be safe to store objects of non-POD types (e.g. pointers, vtable) in such containers? Related post: Dynamic Memory Allocation and Memory Management

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  • Internet Exploer 8 - Internet Access Issue

    - by Paresh.Bijvani
    Hello, I am using IE8 since last 6 months and its working fine. I am using it by providing proxy server address. Suddenly it started not working today. Strange thing is that it fails to communicate with proxy server. It still work if I use modem as internet connection, its just has problem with proxy server communicationl. Even my Firefox is working fine. And all installed application like Yahoo Messanger and skype working fine. I also uninstalled and reinstalled, but no luck. Any work around? Have anybody faced this issue? Thanks Paresh

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  • Screen flicker -> Severe System Slowdown?

    - by Adam Robinson
    I'm using a Dell D830 laptop, and over the last few weeks it's been developing a very irritating screen flicker problem that leads to the system slowing down almost to the point of unusability. At seemingly random times (no commonality between how long the system has been running, what I was doing, what applications were open, etc.) my screen (I use two external LCD's with the laptop closed in a dock) flickers for a moment, then the system becomes incredibly slow. The screen redraws painfully slowly--almost like what you might expect to see with generic graphics drivers installed--and the entire system is maddeningly unresponsive. The only thing that seems to be able to correct the issue is a restart. I've checked the event logs and nothing out of the ordinary is there, and definitely nothing that's common to all of the events. I'm running XP Pro SP2. Any ideas?

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  • "Missing Operating System" after installing Ubuntu 12.04 from a CD on a Macbook Pro

    - by Pierre
    I followed this guide to install Ubuntu 12.04 on my Macbook Pro 8,2 (late 2011): https://help.ubuntu.com/community/MactelSupportTeam/AppleIntelInstallation I used a CD. I synced the partition table on rEFIt, and it went fine. I do have an icon to boot on Linux, but when I launch it, after a few seconds I have "Missing Operating System" displayed, and that's all... How can I fix that? The only thing I see is, in the guide, it is mentioned this: On the last dialog of the installer, be sure to click the “Advanced” button and choose to install the boot loader (grub) to your root Ubuntu partition, for example /dev/sda3. This will be the only partition with the EXT4 file system. In Ubuntu 12.04 installation process, there is not such an option, but there is a dropdown menu to select where the grub bootloader should be installed. It was /dev/sda by default, but I selected my root Ubuntu partition (in my case, /dev/sda5). I got a warning message (but actually, it was the same warning message even when I selected /dev/sda), and I continued the installation... Thanks in advance for your help!

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