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  • Fedora Installation with software repository in DVD does not work

    - by Raks
    I bought a new assembled PC with processor as Core-i3(2120) and Intel H61 motherboard and was trying to install Fedora 16 from a DVD. This DVD contains all the packages so that installation does not require to download packages from internet. I have used this DVD to install Fedora 16 offline many a times though in machines with different hardware configuration. But in this new machine when the installation reaches the stage wherein it asks for Software repository selection I select CD/DVD but the system fails to read the media and throws up an error that it cannot detect the media. THe LED in the DVD writer also indicate that the DVD is not being read. Now there is neither a problem with the DVD or the DVD drive because the installation started from the DVD itself. So what could the problem be, anything in the BIOS that is causing the problem, Is there any way I could utilize the packages already existing in the CD so that I save downloading the packages from DVD

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  • How to maximize http.sys file upload performance

    - by anelson
    I'm building a tool that transfers very large streaming data sets (possibly on the order of terabytes in a single stream; routinely in the tens of gigabytes) from one server to another. The client portion of the tool will read blocks from the source disk, and send them over the network. The server side will read these blocks off the network and write them to a file on the server disk. Right now I'm trying to decide which transport to use. Options are raw TCP, and HTTP. I really, REALLY want to be able to use HTTP. The HttpListener (or WCF if I want to go that route) make it easy to plug in to the HTTP Server API (http.sys), and I can get things like authentication and SSL for free. The problem right now is performance. I wrote a simple test harness that sends 128K blocks of NULL bytes using the BeginWrite/EndWrite async I/O idiom, with async BeginRead/EndRead on the server side. I've modified this test harness so I can do this with either HTTP PUT operations via HttpWebRequest/HttpListener, or plain old socket writes using TcpClient/TcpListener. To rule out issues with network cards or network pathways, both the client and server are on one machine and communicate over localhost. On my 12-core Windows 2008 R2 test server, the TCP version of this test harness can push bytes at 450MB/s, with minimal CPU usage. On the same box, the HTTP version of the test harness runs between 130MB/s and 200MB/s depending upon how I tweak it. In both cases CPU usage is low, and the vast majority of what CPU usage there is is kernel time, so I'm pretty sure my usage of C# and the .NET runtime is not the bottleneck. The box has two 6-core Xeon X5650 processors, 24GB of single-ranked DDR3 RAM, and is used exclusively by me for my own performance testing. I already know about HTTP client tweaks like ServicePointManager.MaxServicePointIdleTime, ServicePointManager.DefaultConnectionLimit, ServicePointManager.Expect100Continue, and HttpWebRequest.AllowWriteStreamBuffering. Does anyone have any ideas for how I can get HTTP.sys performance beyond 200MB/s? Has anyone seen it perform this well on any environment?

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  • Mapping of memory addresses to physical modules in Windows XP

    - by Josef Grahn
    I plan to run 32-bit Windows XP on a workstation with dual processors, based on Intel's Nehalem microarchitecture, and triple channel RAM. Even though XP is limited to 4 GB of RAM, my understanding is that it will function with more than 4 GB installed, but will only expose 4 GB (or slightly less). My question is: Assuming that 6 GB of RAM is installed in six 1 GB modules, which physical 4 GB will Windows actually map into its address space? In particular: Will it use all six 1 GB modules, taking advantage of all memory channels? (My guess is yes, and that the mapping to individual modules within a group happens in hardware.) Will it map 2 GB of address space to each of the two NUMA nodes (as each processor has it's own memory interface), or will one processor get fast access to 3 GB of RAM, while the other only has 1 GB? Thanks!

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  • Sonar and Eclipse IAM Plugin

    - by Hans Klock
    When I am using the IAM Eclipse Plugin for Maven I get an error while executing the sonar:sonar goal in clean install sonar:sonar The error in eclipse is 23:02:55 MESZ Starting Starting mojoExecution sonar-core:internal 23:03:44 MESZ fatal org.sonar.maven2.BatchMojo#execute() caused a linkage error (java.lang.NoSuchMethodError). Check the realms: ... java.lang.NoSuchMethodError: org.apache.maven.execution.ReactorManager.<init>(Ljava/util/List;)V Any idea how to fix it?

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  • off-the-shelf HDD in Dell Optiplex 755 - Invalid Replacement - Press F1 when rebooting

    - by Eric Liprandi
    I recently put an SSD into my work Optiplex 755. Since then, every time the system boots or reboots, I get prompted to hit F1 to continue with a message like HDD replacement is not valid. The system works just fine. What I am gathering from Dell's website is that I left the original drive internally as a data drive. And apparently the Optiplex does not support 2 drives in the configuration we purchased originally and complains. Any suggestions on how to get rid of this message? some suggested the MEBx or whatever from Intel and to turn it off, but I did not succeed earlier. It's not a big deal 80% of the time, but I regularly work from home and occasionally need to fire a reboot and well, you don't get the BIOS screen remotely :) Regards, Eric.

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  • can't rotate display on windows 7

    - by Barry Fandango
    I'm running 64-bit windows 7 on a dell inspiron 1525 with an Intel 965 graphics chipset. When I bring up the "screen resolution" settings, I can set up my primary and secondary display (the laptop + an LCD monitor) but there is no option for rotation. I'm used to using this feature at work so I was surprised to see it missing. I installed dell's latest drivers for this chipset (although they were not marked as w7 or 64 bit) and no change. Any idea what's going on here? Thanks superusers!

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  • How to force a resolution in linux?

    - by hi
    I have a HP LP3065 that requires a dual link dvi cable to go up to 2560x1600 resolution. However, I do not have that cable, but I want to use 1920x1200 resolution. However, my nVidia Display Settings (also system display settings) will only go up to 1280x1024, which looks horribly pixelated on the 30". How do I force the 1920x1200 resolution? I tried adding the mode into my xorg.conf file, but it still would not take it. I know my vid card can do 1920x1200 since it works on the 24" monitor with the same dvi cable. Here are my specs: Fedora 12 Nvidia Quadro NVS 420 Intel Xenon E5530 cpu 6gig memory Thanks

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  • Why does my Mac always crash when I enable `ask for password after screensaver ended`?

    - by Koning Baard XIV
    I have enabled these two things: Placing the mouse-pointer in the bottom-left corner of any display makes the screensaver appear After the screensaver or stand-by has ended, ask for password However, this combination always leads to this (Black Screen of Death) after entering the screensaver with the bottom-left corner: Here are my system specs: Hardware Overview: Model Name: iMac Model Identifier: iMac9,1 Processor Name: Intel Core 2 Duo Processor Speed: 2,66 GHz Number Of Processors: 1 Total Number Of Cores: 2 L2 Cache: 6 MB Memory: 2 GB Bus Speed: 1,07 GHz Boot ROM Version: IM91.008D.B08 SMC Version (system): 1.44f0 Serial Number (system): W89171JF0TF Hardware UUID: 323A90F0-8A2F-5057-B501-2087489E0DFF System Software Overview: System Version: Mac OS X 10.6.3 (10D573) Kernel Version: Darwin 10.3.0 Boot Volume: Macintosh HD Boot Mode: Normal Computer Name: YOU SHOULD NOT KNOW THIS User Name: YOU SHOULD NOT KNOW THIS Secure Virtual Memory: Not Enabled 64-bit Kernel and Extensions: No Time since boot: 11:46 Can anyone help me? Thanks

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  • What are the recommended BEST CASE hardware requirements for TFS 2010

    - by Doug
    Hi guys, i have installed TFS 2010 in a 2 server setup with an App Tier server and a SQL Server and am not 100% happy with the performance. Both are running in VM's on SAN disks and have been given the following virtual hardware each: Windows 2008 R2 1 CPU @ 2.8Ghz 2gb RAM what should i lift - neither machine is hammered but both do go up to 80% when people are doing things on them - should i add another CPU to each - usually this is now required in a VMWARE setup but i don't know if TFS 2010 takes advantage of an extra core??? thank you in advance :-)

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  • Visual Studio 2008 Debugger really slow with SSD

    - by Doug
    Hey guys, my setup is a laptop with Win 7 64bit, VS2008 SP1 on an intel x25-m 4gb RAM with page file turned off (no need) and 2.2 core duo What happens is weird: When i build my project and attach the debugger the symbols load REALLY slowly... like 1 every 5 secs Sometimes the symbols will fail to load at all. This is driving me crazy as this was a freshly installed win 7 box with default VS installation, working on ASP.net web applications... i've never had to use symbol servers or any of that jazz so i'm quite frustrated. With this SSD it should breath fire as it does with loading and doing everything else. Am i missing something?

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  • Cannot boot from windows 7 DVD

    - by webnoob
    Hi All, I have just purchased windows 7 64bit. I entered the disk in the drive and it told me I couldn't upgrade as I am using XP so I have tried to boot from CD instead but it doesn't work. It seems to look at the disk for a few seconds and then ends up at a screen saying windows failed to start and then I hit enter and it loads windows XP again. Does anyone know what could cause this? Here is my system info: Time of this report: 4/15/2010, 18:11:39 Machine name: MYCOMP Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 3 (2600.xpsp_sp3_gdr.100216-1514) Language: English (Regional Setting: English) System Manufacturer: Dell Inc. System Model: OptiPlex 755 BIOS: Phoenix ROM BIOS PLUS Version 1.10 A09 Processor: Intel(R) Core(TM)2 Duo CPU E6550 @ 2.33GHz (2 CPUs) Memory: 3316MB RAM Page File: 568MB used, 4631MB available Windows Dir: C:\WINDOWS DirectX Version: DirectX 9.0c (4.09.0000.0904) DX Setup Parameters: Not found DxDiag Version: 5.03.2600.5512 32bit Unicode

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  • Cannot boot from windows 7 DVD

    - by webnoob
    Hi All, I have just purchased windows 7 64bit. I entered the disk in the drive and it told me I couldn't upgrade as I am using XP so I have tried to boot from CD instead but it doesn't work. It seems to look at the disk for a few seconds and then ends up at a screen saying windows failed to start and then I hit enter and it loads windows XP again. Does anyone know what could cause this? Here is my system info: Time of this report: 4/15/2010, 18:11:39 Machine name: MYCOMP Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 3 (2600.xpsp_sp3_gdr.100216-1514) Language: English (Regional Setting: English) System Manufacturer: Dell Inc. System Model: OptiPlex 755 BIOS: Phoenix ROM BIOS PLUS Version 1.10 A09 Processor: Intel(R) Core(TM)2 Duo CPU E6550 @ 2.33GHz (2 CPUs) Memory: 3316MB RAM Page File: 568MB used, 4631MB available Windows Dir: C:\WINDOWS DirectX Version: DirectX 9.0c (4.09.0000.0904) DX Setup Parameters: Not found DxDiag Version: 5.03.2600.5512 32bit Unicode

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  • eclipse CDT codeassist doesnt work

    - by CodeMedic
    For some strange reason, my CDT code assist in the project I have been working doesn't seem to work anymore. Any idea where to look for? I did try removing the project's file ~/workspace/.metadata/.plugins/org.eclipse.cdt.make.core/MY-PROJECT.sc

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  • Improve Efficiency for This Text Processing Code

    - by johnv
    I am writing a program that counts the number of words in a text file which is already in lowercase and separated by spaces. I want to use a dictionary and only count the word IF it's within the dictionary. The problem is the dictionary is quite large (~100,000 words) and each text document has also ~50,000 words. As such, the codes that I wrote below gets very slow (takes about 15 sec to process one document on a quad i7 machine). I'm wondering if there's something wrong with my coding and if the efficiency of the program can be improved. Thanks so much for your help. Code below: public static string WordCount(string countInput) { string[] keywords = ReadDic(); /* read dictionary txt file*/ /*then reads the main text file*/ Dictionary<string, int> dict = ReadFile(countInput).Split(' ') .Select(c => c) .Where(c => keywords.Contains(c)) .GroupBy(c => c) .Select(g => new { word = g.Key, count = g.Count() }) .OrderBy(g => g.word) .ToDictionary(d => d.word, d => d.count); int s = dict.Sum(e => e.Value); string k = s.ToString(); return k; }

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  • Having Many Problems with Jquery UI 1.8.1 Dialog.js

    - by chobo2
    Hi I been using the jquery ui for quite a while now. This is the first time using 1.8 though and I am not sure why but it seems to me this plugin has taken steps backwards. I never had so much difficulty to use the Jquery UI as I am having now. First the documentation is out of date. Dependencies * UI Core * UI Draggable (Optional) * UI Resizable (Optional) After line 20mins of trying and getting error after error (like dialog is not a function) I realized that you need some other javascript file called "widget.js" So now I have Jquery 1.4.2.js UI Core.js UI Widget.js UI Dialog.js all on my page. I then did something like this $('#Delete').click(function () { var dialogId = "DeleteDialogBox"; var createdDialog = MakeDialogBox(dialogId, "Delete Conformation"); $('#tabConent').after(createdDialog); dialogId = String.format('#{0}', dialogId); $(dialogId).dialog({ resizable: true, height: 500, width: 500, modal: true, buttons: { 'Delete all items': function() { $(this).dialog('close'); }, Cancel: function() { $(this).dialog('close'); } } }); }); function MakeDialogBox(id, title) { var dialog = String.format('<div id="{0}" title="{1}"></div>', id, title); return dialog; } Now what this should be doing is it makes a where the dialog box should go. After that it should put it right after my tabs. So when watching it with firebug it does this. However once does the .dialog() method it moves the + all the stuff it generates and puts it after my footer. So now I have my dialog box under my footer tucked away in the bottom right hand corner. I want it dead in the center. In previous versions I don't think it mattered where the dialog code was on your page it would always be dead center. So what am I missing? The center.js(I don't know if this exists but seems like you need 100 javascript files now to get this to work proper).

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  • IDynamicObject could not be found?!

    - by cvista
    When trying to run the sample code here: http://www.nikhilk.net/Live-Search-REST-API.aspx I get: Error 52 The type or namespace name 'IDynamicObject' could not be found (are you missing a using directive or an assembly reference?) E:\repo\NikhilK-dynamicrest-a93707a\NikhilK-dynamicrest-a93707a\Core\DynamicObject.cs 19 43 DynamicRest The project is running .net 4 - shouldn't this be a part of the standard imports? am i missing something? What do i need to do to make this work?

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  • Selenium IDE and Drupal

    Can I use Selenium IDE on a Drupal system? I found http://drupal.org/project/selenium but that involves downloading Core and not using my current machine. Does anybody know of a way to use the IDE with Drupal, or if not what do you suggest I do?

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  • "this" pointer changes in GDB backtrace

    - by Hans
    I am examining a core dump, and noticed that in one frame the 'this' pointer is different than in the next frame (in the same thread). Not just a little different, it went from 0x8167428 to 0x200. I am not that well-versed in using GDB, but this does not seem right to me. Is this problematic, and if so, what could be the cause?

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  • Using Apple autorelease pools without Objective-C

    - by PierreBdR
    I am developing an application that needs to work on Linux, Windows and Mac OS X. To that purpose, I am using C++ with Qt. For many reasons, on Mac OS X, I need to use CoreFoundation functions (such as CFBundleCopyBundleURL) that creates core objects that need to be released with CFRelease. But doing so generate a lots of these warnings: *** __NSAutoreleaseNoPool(): Object 0x224f7e0 of class NSURL autoreleased with no pool in place - just leaking All the code I've seen concerning these autorelease pools are written in Objective-C. Does anybody know how to create/use autorelease pools in C or C++?

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  • Add padding to display

    - by frbry
    I know this one is weird a bit. I need to scale down the display on my monitor like the example below: http://img706.imageshack.us/img706/4130/58518806.jpg Normally, this could be done with some adjustments in monitor's OSD, but there is no OSD on my LCD monitor. Is it even possible by software? Thanks. Edit: Graphic Card: Intel G33/G31 express Chipset family It would be good if it's permament but it's not needed. I can change my operating system but currently i use Windows XP.

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