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• Firefox stalls on rendering when chrome doesn't

  - by amccormack

  I have a webpage that loads quickly 100% of the time in chrome, but only 10% or so of the time in Firefox. Looking at the fiddler capture, Firefox only loads 2 of the 100ish files being pulled before it hangs. The error does not seem to be on the server or network side, however, because Chrome never encounters a problem. How do I find the root of this stall? While I suspect Firefox's javascript execution is what is causing the hang, are there any particular methods to narrow down the search for the bad code?

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• Unit testing time-bound code

  - by maasg

  I'm currently working on an application that does a lot of time-bound operations. That is, based on long now = System.currentTimeMillis();, and combined with an scheduler, it will calculate periods of time that parametrize the execution of some operations. e.g.: public void execute(...) { // executed by an scheduler each x minutes final int now = (int) TimeUnit.MILLISECONDS.toSeconds(System.currentTimeMillis()); final int alignedTime = now - now % getFrequency() ; final int startTime = alignedTime - 2 * getFrequency(); final int endTimeSecs = alignedTime - getFrequency(); uploadData(target, startTime, endTimeSecs); } Most parts of the application are unit-tested independently of time (in this case, uploadData has a natural unit test), but I was wondering about best practices for testing time-bound parts that rely on System.currentTimeMillis() ?

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• What are the 'must know' GDB commands?

  - by Chris Smith

  I'm starting to get the hang of GDB, but everything still feels much slower than when debugging in Eclipse or Visual Studio. Are there any GDB commands you find particularly useful/productive? My life became dramatically better when I discovered: list - Display source code near the current instruction But that is still pretty basic. (And unnecessary when running GDB from Emacs.) Is there any way to do things like setup a watch window? (Print and update the result of an expression every time execution stops.)

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• Postfix: Using google apps for stmp errors

  - by Zed Said

  I am using postfix and need to send the mail using google apps smtp. I am getting errors after I thought I had set everything up correctly: May 11 09:50:57 zedsaid postfix/error[22214]: 00E009693FB: to=<[email protected]>, relay=none, delay=2466, delays=2462/3.4/0/0.06, dsn=4.7.0, status=deferred (delivery temporarily suspended: SASL authentication failed; cannot authenticate to server smtp.gmail.com[74.125.155.109]: no mechanism available) May 11 09:50:57 zedsaid postfix/error[22213]: 0ACB36D1B94: to=<[email protected]>, relay=none, delay=2486, delays=2482/3.4/0/0.06, dsn=4.7.0, status=deferred (delivery temporarily suspended: SASL authentication failed; cannot authenticate to server smtp.gmail.com[74.125.155.109]: no mechanism available) May 11 09:50:57 zedsaid postfix/error[22232]: 067379693D3: to=<[email protected]>, relay=none, delay=2421, delays=2417/3.4/0/0.06, dsn=4.7.0, status=deferred (delivery temporarily suspended: SASL authentication failed; cannot authenticate to server smtp.gmail.com[74.125.155.109]: no mechanism available) main.cf: # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. #myorigin = /etc/mailname smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h readme_directory = no # TLS parameters #smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem #smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key smtpd_use_tls=yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache # See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for # information on enabling SSL in the smtp client. myhostname = zedsaid.com alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname mydestination = #relayhost = mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 mailbox_command = procmail -a "$EXTENSION" mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all delay_warning_time = 4h smtpd_recipient_limit = 16 # how many error before back off. smtpd_soft_error_limit = 3 # how many max errors before blocking it. smtpd_hard_error_limit = 12 ## Gmail Relay relayhost = [smtp.gmail.com]:587 smtp_use_tls = yes smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd smtp_sasl_security_options = noanonymous smtp_sasl_tls_security_options = noanonymous smtp_sasl_mechanism_filter = login smtp_tls_eccert_file = smtp_tls_eckey_file = smtp_use_tls = yes smtp_enforce_tls = no smtp_tls_CAfile = /etc/postfix/cacert.pem smtpd_tls_received_header = yes tls_random_source = dev:/dev/urandom transport_maps = hash:/etc/postfix/transport debug_peer_list = smtp.gmail.com debug_peer_level = 3 What am I doing wrong?

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• Top Innovations for Sales Managers

  - by divya.malik

  Sales managers are always looking for ways to motivate their troops as well as make themselves more effective and productive. Here is a small X’mas present for those folks that are looking for some effective tips. Our friends at Selling Power magazine recently wrote an interesting blog post with top 10 best practices for sales managers. Here we go: Harness social media Strategically align marketing campaigns with sales efforts Establish a customer-centric sales process Realize ROI with CRM Embrace online collaboration Improve accuracy in sales forecasting and pipeline metrics Coach for sales success Leverage mobile technology Focus on sales enablement Improve sales performance and compensation management We have a complete suite of sales applications, to help increase sales revenues, sales productivity as well as to improve your sales execution. You can find more details here. For more details on the SellingPower blog post click here. Happy Holidays to you and your family.

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• Livre blanc de l'outillage de Qt Quick, traduit par Thibaut Cuvelier et Louis du Verdier

  Qt Quick correspond à une collection de technologies qui sont conçues pour aider les développeurs à créer des interfaces utilisateur intuitives, fluides et à l'apparence moderne, le genre d'interfaces graphiques de plus en plus utilisées sur les téléphones portables, lecteurs média, set-top boxes et autres appareils portables. Qt Quick est constitué d'un ensemble riche d'éléments d'interface utilisateur, d'un langage déclaratif pour la représentation d'interfaces utilisateur, et d'un moteur d'exécution de langage. Une collection d'API C++ est utilisée pour intégrer ces caractéristiques de haut niveau avec les applications Qt classiques. La version 2.1 de l'environnement de développement (EDI) Qt Creator introduit des outils utiles au développement d'applications Qt Quick. Ce livre blanc do...

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• First Foray&ndash;About timeout

  - by SQLMonger

  It has been quite a while since I signed up for this blog site and high time that something was posted.  I have a list of topics that I will be working through and posting.  Some I am sure will have been posted by others, but I will be sticking to the technical problems and challenges that I’ve recently faced, and the solutions that worked for me.  My motto when learning something new has always been “My kingdom for an example!”, and I plan on delivering useful examples here so others can learn from my efforts, failures and successes.   A bit of background about me… My name is Clayton Groom. I am a founding partner of a consulting firm in St. Louis Missouri, Covenant Technology Partners, LLC and focus on SQL Server Data Warehouse design, Analysis Services and Enterprise Reporting solutions.  I have been working with SQL Server since the early nineties, when it still only ran on OS/2. I love solving puzzles and technical challenges.   Enough about me… On to a real problem… SSIS Connection Time outs versus Command Time outs Last week, I was working on automating the processing for a large Analysis Services cube.  I had reworked an SSIS package and script task originally posted by Vidas Matelis that automates the process of adding new and dropping old partitions to/from an Analysis Services cube.  I had the package working great, tested, and ready for deployment.  It basically performs a query against the source system to determine if there is new data in the warehouse that will require a new partition to be added to the cube, and it checks the cube to see if there are any partitions that are present that are no longer needed in a rolling 60 month window. My client uses Tivoli for running all their production jobs, and not SQL Agent, so I had to build a command line file for Tivoli to use to run the package. Everything was going great. I had tested the command file from my development workstation using an XML configuration file to pass in server-specific parameters into the package when executed using the DTExec utility. With all the pieces ready, I updated the dtsconfig file to point to the UAT environment and started working with the Tivoli developer to test the job.  On the first run, the job failed, and from what I could see in the SSIS log, it had failed because of a timeout. Other errors in the log made me think that perhaps the connection string had not been passed into the package correctly. We bumped the Connection Manager  timeout values from 20 seconds to 120 seconds and tried again. The job still failed. After changing the command line to use the /SET option instead of the /CONFIGFILE option, we tested again, and again failure. After a number more failed attempts, and getting the Teradata DBA involved to monitor and see if we were connecting and failing or just failing to connect, we determined that the job was indeed connecting to the server and then disconnecting itself after 30 seconds.  This seemed odd, as we had the timeout values for the connection manager set to 180 seconds by then.  At this point one of the DBA’s found a post on the Teradata forum that had the clues to the puzzle: There is a separate “CommandTimeout” custom property on the Data source object that may needed to be adjusted for longer running queries.  I opened up the SSIS package, opened the data flow task that generated the partition list table and right-clicked on the data source. from the context menu, I selected “Show Advanced Editor” and found the property. Sure enough, it was set to 30 seconds. The CommandTimeout property can also be edited in the SSIS Properties sheet. In order to determine how long the timeout needed to be, I ran the query from the task in the development environment and received a response in a matter of seconds.  I then tried the same query against the production database and waited several minutes for a response. This did not seem to be a reasonable response time for the query involved, and indeed it wasn’t. The Teradata DBA’s adjusted the query governor settings for the service account I was testing with, and we were able to get the response back down under a minute.  Still, I set the CommandTimeout property to a much higher value in case the job was ever started during a time of high-demand on the production server. With this change in place, the job finally completed successfully.  The lesson learned for me was two-fold: Always compare query execution times between development and production environments, and don’t assume that production will always be faster.  With higher user demands, query governors, and a whole lot more data, the execution time of even what might seem to be simple queries can vary greatly. SSIS Connection time out settings do not affect command time outs.  Connection timeouts control how long the package will wait for a response from the server before assuming the server is not available or is not responding. Command time outs control how long a task will wait for results to start being returned before deciding that the server is not responding. Both lessons seem pretty straight forward, and I felt pretty sheepish once I finally figured out what the issue was.  To be fair though, In the 5+ years that I have been working with SSIS, I could only recall one other time where I had to set the CommandTimeout property, and that memory only resurfaced while I was penning this post.

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• Lucid hangs at booting after kernel upgrade

  - by Thomas Deutsch

  This weekend, one of our servers running Lucid has installed some upgrades: libgcrypt11 1.4.4-5ubuntu2.1 linux-firmware 1.34.14 linux-image-2.6.32-41-generic 2.6.32-41.91 linux-libc-dev 2.6.32-41.91 Afterwards, it rebooted since this was a kernel upgrade. Now, it hangs at booting, after /scripts/init-bottom. init-bottom itself should not be the problem, the last line I can see is "done". So the problem has to be shortly after that. http://manpages.ubuntu.com/manpages/hardy/man8/initramfs-tools.8.html tells me, that the next step is procfs and sysfs are moved to the real rootfs and execution is turned over to the init binary which should now be found in the mounted rootfs. But I don't know how and where. The problem exists with older kernels too, and this one here doesn't fix the problem: http://www.tummy.com/journals/entries/jafo_20111003_160440 Anyone an idea?

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• Test A SSH Connection from Windows commandline

  - by IguanaMinstrel

  I am looking for a way to test if a SSH server is available from a Windows host. I found this one-liner, but it requires the a Unix/Linux host: ssh -q -o "BatchMode=yes" user@host "echo 2>&1" && echo "UP" || echo "DOWN" Telnet'ing to port 22 works, but that's not really scriptable. I have also played around with Plink, but I haven't found a way to get the functionality of the one-liner above. Does anyone know Plink enough to make this work? Are there any other windows based tools that would work? Please note that the SSH servers in question are behind a corporate firewall and are NOT internet accessible. Arrrg. Figured it out: C:\>plink -batch -v user@host Looking up host "host" Connecting to 10.10.10.10 port 22 We claim version: SSH-2.0-PuTTY_Release_0.62 Server version: SSH-2.0-OpenSSH_4.7p1-hpn12v17_q1.217 Using SSH protocol version 2 Server supports delayed compression; will try this later Doing Diffie-Hellman group exchange Doing Diffie-Hellman key exchange with hash SHA-256 Host key fingerprint is: ssh-rsa 1024 aa:aa:aa:aa:aa:aa:aa:aa:aa:aa:aa:aa:aa:aa:aa:aa Initialised AES-256 SDCTR client->server encryption Initialised HMAC-SHA1 client->server MAC algorithm Initialised AES-256 SDCTR server->client encryption Initialised HMAC-SHA1 server->client MAC algorithm Using username "user". Using SSPI from SECUR32.DLL Attempting GSSAPI authentication GSSAPI authentication initialised GSSAPI authentication initialised GSSAPI authentication loop finished OK Attempting keyboard-interactive authentication Disconnected: Unable to authenticate C:\>

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• Managed code and the Shell – Do?

  Back in 2006 I wrote a blog post titled: Managed code and the Shell – Don't!. Please visit that post to see why that advice was given.The crux of the issue has been addressed in the latest CLR via In-Process Side-by-Side Execution. In addition to the MSDN documentation I just linked, there is also an MSDN article on the topic: In-Process Side-by-Side.Now, even though the major technical impediment seems to be removed, I don’t know if Microsoft is now officially supporting managed extensions to the shell. Either way, I noticed a CodePlex project that is marching ahead to enable exactly that: Managed Mini Shell Extension Framework. Not much activity there, but maybe it will grow once .NET 4 is released... Comments about this post welcome at the original blog.

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• Funny statements, quotes, phrases, errors found on technical Books [closed]

  - by Felipe Fiali

  I found some funny or redundant statements on technical books I've read, I'd like to share. And I mean good, serious, technical books. Ok so starting it all: The .NET framework doesn't support teleportation From MCTS 70-536 Training kit book - .NET Framework 2.0 Application Development Foundation Teleportation in science fiction is a good example of serialization (though teleportation is not currently supported byt the .NET Framework). C# 3 is sexy From Jon Skeet's C# in Depth second Edition You may be itching to get on to the sexy stuff from C# 3 by this point, and I don’t blame you. Instantiating a class From Introduction to development II in Microsoft Dynamics AX 2009 To instantiate a class, is to create a new instance of it. Continue or break From Introduction to development II in Microsoft Dynamics AX 2009 Continue and break commands are used within all three loops to tell the execution to break or continue. These are just a few. I'll post some more later. Share some that you might have found too.

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• Le gestionnaire d'accès de Sun repris par des anciens de la société : OpenSSO devient OpenAM grâce à

  Le gestionnaire d'accès de Sun repris par des anciens de la société OpenSSO devient OpenAM sous l'égide de Simon Phipps, nouvel employé de ForgeRock Dans la famille des technologies de Sun dont on se demande ce qu'elles vont devenir avec leur rachat par Oracle, voici OpenSSO. OpenSSO est un gestionnaire d'accès à des services web, open source, fondé sur un mécanisme de single sign-on qui fournit « des services d'identité essentiels pour simplifier, de manière transparente, l'exécution de la connexion unique ». Sous l'égide d'Oracle, cette technologie était semble-t-il sur une voie de garage. Le géant du logiciel possédait déjà ses propres solutions avant même le rach...

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• gtk glade need help

  - by shiv garg

  I am using glade to make an user interface. i have successfully generated the glade file Now i have to include this file in my C code. I am using following code: #include <stdlib.h> #include<gtk/gtk.h> int main (int argc, char *argv[]) { GtkWidget *builder,*window,*button; gtk_init (&argc, &argv); builder=gtk_builder_new(); gtk_builder_add_from_file(builder,"shiv.glade",NULL); window=GTK_WIDGET (gtk_builder_get_object(builder,"window1")) ; button=GTK_WIDGET (gtk_builder_get_object(builder,"button1")); g_object_unref(G_OBJECT(builder)); gtk_widget_show(button); gtk_widget_show(window); gtk_main (); return 0; } My UI is a simple window having a button without any callback function. I am getting following errors on execution GTK-CRITICAL **: IA__gtk_widget_show assertion 'GTK_IS_WIDGET(widget)' failed

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• Best way to execute a command after Linux system halt

  - by Lukas Loesche

  Problem: The SSDs in our servers require a power cycle (i.e. off/on, not reset/warm reboot) after a firmware update. Thoughts: Using 'ipmitool chassis power cycle' I can cycle the server's power. However this would cut the power while the system is still running, filesystems are mounted, etc. What I basically want is a delayed power cycle so the system has a change to halt. But I guess that would have to be implemented on the server's IPMI board, so it's not really an option. My initial idea was to dynamically create a ramdisk containing the tool and libs and somehow integrate that into the halt process. I saw there's a /etc/init.d/halt, so that would be my starting point. Although I believe the kernel at some point in the shutdown process starts to kill off remaining processes. So I'm not even sure if that's a viable way. Question: What would be the best way to execute ipmitool (or any other command), after the system has halted and all regular filesystems are unmounted?

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• Can't set permissions for files on an NTFS partition

  - by ashishsony

  I remember that I was able to run a Linux .exe that was placed on an NTFS partition earlier before I installed 10.10 RC. But if I try to run it now, I can't run it as it hasn't the execution permission. The bad part is that I can't change the permissions too. I'm chmod-ding +x but no change at all with its permissions. So this seems to be a bug? Any help? Though when I put it on ext4 partition, I can set the permission. But I want to do this as I did before, right from its default NTFS location.

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• Ubuntu took away permissions from my Data partition

  - by RobinJ

  The pangolin has struck again. The bug of the day for today is Ubuntu taking away my permissions on my Data partition (NTFS). One moment everything worked fine, the next moment I couldn't chmod anything anymore. chown throws no errors or warnings at all, but nothing has changed either. chmod keeps saying Operation not permitted. I've been messing around with /etc/fstab as suggested by other answers on AskUbuntu, but none of them seem to have the desired effect. This is my current line: UUID=25D7D681409A96B7 /media/Data ntfs defaults,umask=000,gid=46,permissions,users,auto,exec 0 0 For reference, this is the original one: UUID=25D7D681409A96B7 /media/Data ntfs defaults,umask=007,gid=46 0 0 (right after the problem started occuring) What do I need to do so I am the owner of my own hard drive again? I want to be able to just use chmod and chown (without sudo) without being told that some mysterious alien has taken over control of my Data partition. I can still read and write, but execution permissions seem to be the problem.

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• Introducing the Documentation Workflows

  - by Owen Allen

  The how-to documents  provide end to end examples of specific features, such as creating a new zone or discovering a new system. We are enhancing the individual how-tos with documents called Workflows. These workflows are each built around procedural flowcharts that show these larger and more complex tasks. The workflow indicates which how-tos or other workflows you should follow to complete a more complex process, and give you a flow for planning the execution of a process. Over the coming days I'll highlight each of these workflows, and talk about the tasks that each one guides you through.

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• tar Cannot open: No such file or directory

  - by Jakobud

  Fresh install of CentOS 5.4 Downloaded the following: http://prdownloads.sourceforge.net/webadmin/webmin-1.510.tar.gz MD5 sum is correct (cdcc09d71d85d81914a90413eaf21d3f). The file is located here: /tmp/webmin-1.510.tar.gz tmp and webmin-1.510.tar.gz both have chmod 777. I am logged in as root. Command: tar -zxfv webmin-1.510.tar Result: tar: v: Cannot open: No such file or directory tar: Error is not recoverable: exiting now tar: Child returned status 2 tar: webmin-1.510.tar: Not found in archive tar: Error exit delayed from previous errors Never run across this before. It's like it thinks that v is a file I want to extract, but its one of the command arguments... If I leave out the v... tar -zxf webmin-1.510.tar.gz The command stalls. It doesn't do anything. Just goes to the next line and no prompt comes up. I have to CTRL-C to get back to the prompt and a ls verifies that it didn't extract anything... My first reaction is that its not a valid tar/gz file or something. But the MD5 matches just fine. So I'm at a loss just a bit...

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• tar Cannot stat: No such file or directory

  - by VVP

  Hi all, I have got this error in during my mail server backup: 2010-09-16 06:24:20 ERROR backup of /var/mail/vhosts failed: tar: Removing leading `/' from member names tar: /var/mail/vhosts/host-name/0/user-name/.maildir/cur/1284588471.Vfd00I16e0223M187263.server.host-name\:2,: Cannot stat: No such file or directory tar: /var/mail/vhosts/host-name/0/user-name/.maildir/cur/1284587441.Vfd00I16e0220M85965.server.host-name\:2,: Cannot stat: No such file or directory tar: /var/mail/vhosts/host-name/0/user-name/.maildir/cur/1284588863.Vfd00I16e0225M370937.server.host-name\:2,: Cannot stat: No such file or directory tar: /var/mail/vhosts/host-name/0/user-name/.maildir/cur/1284602404.Vfd00I16e022aM416444.server.host-name\:2,: Cannot stat: No such file or directory tar: /var/mail/vhosts/host-name/0/user-name/.maildir/cur/1284594551.Vfd00I16e0228M678444.server.host-name\:2,: Cannot stat: No such file or directory tar: /var/mail/vhosts/host-name/0/user-name/.maildir/cur/1284588944.Vfd00I16e0226M622591.server.host-name\:2,: Cannot stat: No such file or directory tar: /var/mail/vhosts/host-name/0/user-name/.maildir/cur/1284587271.Vfd00I16e021fM96119.server.host-name\:2,: Cannot stat: No such file or directory tar: /var/mail/vhosts/host-name/0/user-name/.maildir/cur/1284599458.Vfd00I16e0229M181400.server.host-name\:2,: Cannot stat: No such file or directory tar: Error exit delayed from previous errors Is it happened because user deleted his messages? Is there any way how to prevent this? Well I am assuming it can be happened not only with e-mail backup. Can I rely on tar & gzip as a mail backup system?

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• Revert permission of /usr back to root

  - by Rodrigo Sasaki

  I was doing some alterations but in one I messed up. I changed the permissions of almost everything inside the /usr folder to my own user. It didn't change everything because it failed in the middle of the execution, I still have /sbin, /share and /src assigned to root. the command I ran was this (this was executed while inside /usr): sudo chown -R myuser:myuser . Is there any way for me to revert this? If I run: sudo chown -R root:root . I get this error: sudo: /usr/bin/sudo must be owned by uid 0 and have the setuid bit set

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• Brightness problem after upgrade Ubuntu 13.10

  - by Daniel Yunus

  I have upgrade to 13.10 recently. But, the brightness is working after I add this in version 13.04 before. After I upgrade to 13.10, this code is not working on ASUS Slimbook X401U #!/bin/sh -e # # rc.local # # This script is executed at the end of each multiuser runlevel. # Make sure that the script will "exit 0" on success or any other # value on error. # # In order to enable or disable this script just change the execution # bits. # # By default this script does nothing. echo 0 > /sys/class/backlight/acpi_video0/brightness exit 0

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• Android/Java AI agent framework/middleware

  - by corneliu

  I am looking for an AI agent framework to use as a starting point in an Android game I have to create for a university research project. It has been suggested to me to use JADE, but, as far as I can tell, it's not a suitable framework for games (at least for my game idea) because it runs in a split-execution mode, and it needs an always-active network connection to a main host. What I want is just a little something to give me a headstart. I am willing to adjust the game's features to the framework because it's more of a mockup game, and the purpose is to compare the performance of a couple of agents in the game world. The game will be very simplistic, with a minimal UI that displays various stats about the characters in the game (so no graphics, no pathfinding). Thank you.

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• Day 5 of Oracle OpenWorld 2012 October 4th

  - by Maria Colgan

  Its the last day of Oracle OpenWorld and we have saved the very best for last. So hopefully you are still awake and functioning at this stage! Today, we present An Insider’s View of How the Optimizer Works (Session CON8457) at Moscone South - room 104. This session explains how the latest version of the optimizer works and the best ways you can influence its decisions to ensure you get optimal execution every time We really hope you have enjoy the conference so far and will stop by our session this afternoon before you head off home! +Maria Colgan

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• Is Query Performance different for different versions of SQL Server?

  - by Ronak Mathia

  I have fired 3 update queries in my stored procedure for 3 different tables. Each table contains almost 2,00,000 records and all records have to be updated. I am using indexing to speed up the performance. It quite working well with SQL Server 2008. stored procedure takes only 12 to 15 minutes to execute. (updates almost 1000 rows in 1 second in all three tables) But when I run same scenario with SQL Server 2008 R2 then stored procedure takes more time to complete execution. its about 55 to 60 minutes. (updates almost 100 rows in 1 second in all three tables). I couldn't find any reason or solution for that. I have also tested same scenario with SQL Server 2012. but result is same as above. Please give suggestions.

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• Parallel Computing in .Net 4.0

  - by kaleidoscope

  Technorati Tags: Ram,Parallel Computing in .Net 4.0 Parallel computing is the simultaneous use of multiple compute resources to solve a computational problem: To be run using multiple CPUs A problem is broken into discrete parts that can be solved concurrently Each part is further broken down to a series of instructions Instructions from each part execute simultaneously on different CPUs Parallel Extensions in .NET 4.0 provides a set of libraries and tools to achieve the above mentioned objectives. This supports two paradigms of parallel computing Data Parallelism – This refers to dividing the data across multiple processors for parallel execution.e.g we are processing an array of 1000 elements we can distribute the data between two processors say 500 each. This is supported by the Parallel LINQ (PLINQ) in .NET 4.0 Task Parallelism – This breaks down the program into multiple tasks which can be parallelized and are executed on different processors. This is supported by Task Parallel Library (TPL) in .NET 4.0 A high level view is shown below:

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