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• Monitoring the Server load In Windows NT and triggering a scheduled task

  - by Gnanesh

  Hi, I am having the following problem. I am running a Windows NT server. I need to monitor the server utilization continuously (automated process) and need to know if the server load is high. And if it high I need to trigger a scheduled task. Can we write a VB script in order to do this? Can someone please help me? Kindly let me know in case you require more info on this Thanks

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• System halts for a fraction of second after every 2-3 seconds

  - by iSam

  I'm using Windows 7 on my HP ProBook 4250s. The problem I face is that my system halts for a fraction of second after every 2-3 seconds. These jerks are not letting me concentrate or work properly. This happens even when I'm just typing in notepad while no other application is running. I tried to install every driver from HP's website and there's no item in device manager marked with yellow icon. Following are my system specs: Machine: HP ProBook 4250s OS: Windows 7 professional RAM: 2GB Processor: Intel Core i3 2.27GHz Following is my HijackThis Log: **Logfile of HijackThis v1.99.1** Scan saved at 9:34:03 PM, on 11/13/2012 Platform: Unknown Windows (WinNT 6.01.3504) MSIE: Internet Explorer v9.00 (9.00.8112.16450) **Running processes:** C:\Windows\system32\taskhost.exe C:\Windows\System32\rundll32.exe C:\Windows\system32\Dwm.exe C:\Windows\Explorer.EXE C:\Windows\System32\igfxtray.exe C:\Windows\System32\hkcmd.exe C:\Windows\System32\igfxpers.exe C:\Program Files\Synaptics\SynTP\SynTPEnh.exe C:\Program Files\PowerISO\PWRISOVM.EXE C:\Program Files\AVAST Software\Avast\AvastUI.exe C:\Program Files\Free Download Manager\fdm.exe C:\Windows\system32\wuauclt.exe C:\Program Files\Windows Media Player\wmplayer.exe C:\Program Files\Microsoft Office\Office12\WINWORD.EXE C:\HijackThis\HijackThis.exe R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896 R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://bing.com/ R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157 R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896 R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896 R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157 R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch = R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = R3 - URLSearchHook: (no name) - {7473b6bd-4691-4744-a82b-7854eb3d70b6} - (no file) O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll O2 - BHO: Babylon toolbar helper - {2EECD738-5844-4a99-B4B6-146BF802613B} - (no file) O2 - BHO: MrFroggy - {856E12B5-22D7-4E22-9ACA-EA9A008DD65B} - C:\Program Files\Minibar\Froggy.dll O2 - BHO: avast! WebRep - {8E5E2654-AD2D-48bf-AC2D-D17F00898D06} - C:\Program Files\AVAST Software\Avast\aswWebRepIE.dll O2 - BHO: Windows Live ID Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll O2 - BHO: Minibar BHO - {AA74D58F-ACD0-450D-A85E-6C04B171C044} - C:\Program Files\Minibar\Kango.dll O2 - BHO: Free Download Manager - {CC59E0F9-7E43-44FA-9FAA-8377850BF205} - C:\Program Files\Free Download Manager\iefdm2.dll O2 - BHO: HP Network Check Helper - {E76FD755-C1BA-4DCB-9F13-99BD91223ADE} - C:\Program Files\Hewlett-Packard\HP Support Framework\Resources\HPNetworkCheck\HPNetworkCheckPlugin.dll O3 - Toolbar: (no name) - {98889811-442D-49dd-99D7-DC866BE87DBC} - (no file) O3 - Toolbar: avast! WebRep - {8E5E2654-AD2D-48bf-AC2D-D17F00898D06} - C:\Program Files\AVAST Software\Avast\aswWebRepIE.dll O4 - HKLM\..\Run: [IgfxTray] C:\Windows\system32\igfxtray.exe O4 - HKLM\..\Run: [HotKeysCmds] C:\Windows\system32\hkcmd.exe O4 - HKLM\..\Run: [Persistence] C:\Windows\system32\igfxpers.exe O4 - HKLM\..\Run: [SynTPEnh] %ProgramFiles%\Synaptics\SynTP\SynTPEnh.exe O4 - HKLM\..\Run: [PWRISOVM.EXE] C:\Program Files\PowerISO\PWRISOVM.EXE -startup O4 - HKLM\..\Run: [AdobeAAMUpdater-1.0] "C:\Program Files\Common Files\Adobe\OOBE\PDApp\UWA\UpdaterStartupUtility.exe" O4 - HKLM\..\Run: [AdobeCS6ServiceManager] "C:\Program Files\Common Files\Adobe\CS6ServiceManager\CS6ServiceManager.exe" -launchedbylogin O4 - HKLM\..\Run: [SwitchBoard] C:\Program Files\Common Files\Adobe\SwitchBoard\SwitchBoard.exe O4 - HKLM\..\Run: [ROC_roc_ssl_v12] "C:\Program Files\AVG Secure Search\ROC_roc_ssl_v12.exe" / /PROMPT /CMPID=roc_ssl_v12 O4 - HKLM\..\Run: [avast] "C:\Program Files\AVAST Software\Avast\avastUI.exe" /nogui O4 - HKLM\..\Run: [Wordinn English to Urdu Dictionary] "C:\Program Files\Wordinn\Urdu Dictionary\bin\Lugat.exe" -h O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe" O4 - HKCU\..\Run: [Comparator Fast] "C:\Program Files\Interdesigner Software\Comparator Fast\ComparatorFast.exe" /STARTUP O4 - HKCU\..\Run: [Free Download Manager] "C:\Program Files\Free Download Manager\fdm.exe" -autorun O8 - Extra context menu item: Download all with Free Download Manager - file://C:\Program Files\Free Download Manager\dlall.htm O8 - Extra context menu item: Download selected with Free Download Manager - file://C:\Program Files\Free Download Manager\dlselected.htm O8 - Extra context menu item: Download video with Free Download Manager - file://C:\Program Files\Free Download Manager\dlfvideo.htm O8 - Extra context menu item: Download with Free Download Manager - file://C:\Program Files\Free Download Manager\dllink.htm O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000 O9 - Extra button: @C:\Program Files\Hewlett-Packard\HP Support Framework\Resources\HPNetworkCheck\HPNetworkCheckPlugin.dll,-103 - {25510184-5A38-4A99-B273-DCA8EEF6CD08} - C:\Program Files\Hewlett-Packard\HP Support Framework\Resources\HPNetworkCheck\NCLauncherFromIE.exe O9 - Extra 'Tools' menuitem: @C:\Program Files\Hewlett-Packard\HP Support Framework\Resources\HPNetworkCheck\HPNetworkCheckPlugin.dll,-102 - {25510184-5A38-4A99-B273-DCA8EEF6CD08} - C:\Program Files\Hewlett-Packard\HP Support Framework\Resources\HPNetworkCheck\NCLauncherFromIE.exe O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL O9 - Extra button: Change your facebook look - {AAA38851-3CFF-475F-B5E0-720D3645E4A5} - C:\Program Files\Minibar\MinibarButton.dll O10 - Unknown file in Winsock LSP: c:\windows\system32\nlaapi.dll O10 - Unknown file in Winsock LSP: c:\windows\system32\napinsp.dll O10 - Unknown file in Winsock LSP: c:\program files\common files\microsoft shared\windows live\wlidnsp.dll O10 - Unknown file in Winsock LSP: c:\program files\common files\microsoft shared\windows live\wlidnsp.dll O11 - Options group: [ACCELERATED_GRAPHICS] Accelerated graphics O11 - Options group: [INTERNATIONAL] International O13 - Gopher Prefix: O17 - HKLM\System\CCS\Services\Tcpip\..\{920289D7-5F75-4181-9A37-5627EAA163E3}: NameServer = 8.8.8.8,8.8.4.4 O17 - HKLM\System\CCS\Services\Tcpip\..\{AE83ED2F-EF14-4066-ACE2-C4ED07A68EAA}: NameServer = 9.9.9.9,8.8.8.8 O18 - Protocol: ms-help - {314111C7-A502-11D2-BBCA-00C04F8EC294} - C:\Program Files\Common Files\Microsoft Shared\Help\hxds.dll O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\COMMON~1\Skype\SKYPE4~1.DLL O18 - Protocol: wlpg - {E43EF6CD-A37A-4A9B-9E6F-83F89B8E6324} - C:\Program Files\Windows Live\Photo Gallery\AlbumDownloadProtocolHandler.dll O18 - Filter hijack: text/xml - {807563E5-5146-11D5-A672-00B0D022E945} - C:\PROGRA~1\COMMON~1\MICROS~1\OFFICE12\MSOXMLMF.DLL O20 - AppInit_DLLs: c:\progra~2\browse~1\23787~1.43\{16cdf~1\browse~1.dll c:\progra~2\browse~1\22630~1.40\{16cdf~1\browse~1.dll O20 - Winlogon Notify: igfxcui - C:\Windows\SYSTEM32\igfxdev.dll O23 - Service: avast! Antivirus - AVAST Software - C:\Program Files\AVAST Software\Avast\AvastSvc.exe O23 - Service: Google Software Updater (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe O23 - Service: HP Support Assistant Service - Hewlett-Packard Company - C:\Program Files\Hewlett-Packard\HP Support Framework\hpsa_service.exe O23 - Service: HP Quick Synchronization Service (HPDrvMntSvc.exe) - Hewlett-Packard Company - C:\Program Files\Hewlett-Packard\Shared\HPDrvMntSvc.exe O23 - Service: HP Software Framework Service (hpqwmiex) - Hewlett-Packard Company - C:\Program Files\Hewlett-Packard\Shared\hpqWmiEx.exe O23 - Service: HP Service (hpsrv) - Hewlett-Packard Company - C:\Windows\system32\Hpservice.exe O23 - Service: Intel(R) Management and Security Application Local Management Service (LMS) - Intel Corporation - C:\Program Files\Intel\Intel(R) Management Engine Components\LMS\LMS.exe O23 - Service: Mozilla Maintenance Service (MozillaMaintenance) - Mozilla Foundation - C:\Program Files\Mozilla Maintenance Service\maintenanceservice.exe O23 - Service: @%SystemRoot%\system32\qwave.dll,-1 (QWAVE) - Unknown owner - %windir%\system32\svchost.exe (file missing) O23 - Service: @%SystemRoot%\system32\seclogon.dll,-7001 (seclogon) - Unknown owner - %windir%\system32\svchost.exe (file missing) O23 - Service: Skype Updater (SkypeUpdate) - Skype Technologies - C:\Program Files\Skype\Updater\Updater.exe O23 - Service: Adobe SwitchBoard (SwitchBoard) - Adobe Systems Incorporated - C:\Program Files\Common Files\Adobe\SwitchBoard\SwitchBoard.exe O23 - Service: Intel(R) Management & Security Application User Notification Service (UNS) - Intel Corporation - C:\Program Files\Intel\Intel(R) Management Engine Components\UNS\UNS.exe O23 - Service: @%PROGRAMFILES%\Windows Media Player\wmpnetwk.exe,-101 (WMPNetworkSvc) - Unknown owner - %PROGRAMFILES%\Windows Media Player\wmpnetwk.exe (file missing)

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• Apache2 BufferedLogs On - anybody using it ?

  - by Qiqi

  Greetings, I am wondering, whether anybody is using BufferedLogs On with Apache2 and found any issues ? Feature is marked as experimental, but for many years now, so I guess it's rather pretty stable. I am running some servers with constrained disk IO capacity at the moment, so I turned it on hoping that even a small benefit could help in the long run ;-) I do have several to several hundreds requests per seconds so by my thoughts there is really no need to write to log after each request, cause honestly I don't think that my filesystem is the best handler for many unnecessary writes. (OCFS2 shared among several DomUs in the Xen)

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• Apache is spawning more and more processes!!

  - by erotsppa

  We have a LAMP setup that is working prety good for half a year. All of a sudden today the apache server (mysql servers are not on this box) started to die. It seems to have started to spawn more and more processes over time. Eventually it will consume all the memory and the server would just die. We are using prefork. In the mean time what we are doing is just added more ram and increased the MaxClients and ServerLimit parameter to 512. We're just prolonging the crash. The number still goes up slowly. Maybe in a day, it would reach that limit. What is going on? We only have around 15-20 request per second. We have 1Gb memory and it's not half used, there's no swapping going on. Why is apache creating more and more processes? It's almost like theres a leak somewhere! The database boxes are fine, they are not causing a delay to requests. We tested some queries everything is quick!

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• Programs minimized for long time takes long time to "wake up"

  - by bart

  I'm working in Photoshop CS6 and multiple browsers a lot. I'm not using them all at once, so sometimes some applications are minimized to taskbar for hours or days. The problem is, when I try to maximize them from the taskbar - it sometimes takes longer than starting them! Especially Photoshop feels really weird for many seconds after finally showing up, it's slow, unresponsive and even sometimes totally freezes for minute or two. It's not a hardware problem as it's been like that since always on all on my PCs. Would I also notice it after upgrading my HDD to SDD and adding RAM (my main PC holds 4 GB currently)? Could guys with powerful pcs / macs tell me - does it also happen to you? I guess OSes somehow "focus" on active software and move all the resources away from the ones that run, but are not used. Is it possible to somehow set RAM / CPU / HDD priorities or something, for let's say, Photoshop, so it won't slow down after long period of inactivity?

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• Best 2x 4GB RAM for a Thinkpad X200s

  - by Tommy Jakobsen

  Hi, I need 2x 4GB RAM, a total of 8GB, in my upcoming Thinkpad X200s laptop. Before buying, I would like your advice on which modules to choose. I've been looking at Corsair's Value Select (P/N: CM3X4GSD1066) RAM, because in my experience they produce good RAM modules. However, Corsair lists 7 clock cycles for their modules while Lenovo lists 5 clock cycles. What do you think? Is Lenovo modules the best choice? Are they the fastest/most stable, or is it the Corsair modules? Or modules from a third vendor? Thanks in advance!

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• High disk I/O - jbd2/sda2-8 process

  - by Evan Hamlet

  I have run a file server on a CentOS 5.8 final server. My only concern at the moment is what appears to be intermittent but continuous high disk I/O activity causing a general slowdown because of jbd2/sda2-8 process. jbd2/sda2-8 is making use of /dev/sda2, which is the 2nd partition of the first harddrive (IE: root partition). More info: using "iotop" the culprit appears to be "jbd2/sda1-8" making writes every second, which appears to be a kernel process associated with journaling on the ext4 filesystem, if my googling around is correct. I see "jbd2/sda2-8" appearing here every now and then, but certainly not every 3 seconds.. when idle, it appears about 1 or 2 times per minute. When I'm using the system, it appears more frequently. ATOP results: http://grabilla.com/02b14-8022db2e-4eb9-4f10-8e10-d65c49ad7530.png IOTOP results: http://grabilla.com/02b14-cf74b25d-4063-4447-9210-7d1b9b70e25b.png HTOP results: grabilla. com/02b14-ad8cad0e-89b0-46d3-849d-4fd515c1e690.png jbd2/sda2-8 is the processes I see with iotop making writes on disk even though it's not in use at all. Does someone has any idea how could I solve the high disk usage caused jbd2/sda2-8 process?

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• Mac has become insanely slow : Processes SystemUIServer, UserEventAgent and loginwindow using a lot of memory

  - by SatheeshJM

  I have been using my Mac for for many months without any problem. But recently all of a sudden the Mac became insanely slow. I opened Activity Manager to see what was happening. For three processes SystemUIServer, UserEventAgent and loginwindow, the memory gradually increases and reaches upto 2 GB for each process. This completely hangs up my Mac. I tried the following : 1. Restart Mac 2. Restart Mac in safe mode 3. Manually kill the processes 4. Remove Date and Time from Menu bar(this was supposed to be the problem for the SysteUIServer process's memory according to many users) 5. Removed the externally connected keyboard and mouse(some had suggested this for UserEventAgent's memory) No luck with any of those. The moment I log in, the memory spikes up. Any idea what the hell is happening? Please help.

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• Pros/cons to turning off cable modem

  - by Jay

  A little off the wall perhaps, but ... I have a cable modem and a router for a wireless home network. Is it a good or a bad idea to turn it off at night and during the day when we're all at work or school? Or should I leave it on 24/7. I was thinking that leaving it on constantly makes me more vulnerable to hackers, not to mention wasting electricity. (Though I'd guess the amount of electricity used by a cable modem and a router is probably pretty trivial. Still, every little bit helps.) When I have turned it off and turned it on again, it takes several minutes for it to go through its little dialog with the cable company and get me connected to the Internet again, which is annoying but not a big deal. Anyone know any good reasons one way or the other?

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• How do I find out which websites are slowing down my server?

  - by jesse.gavin

  Are there any good tools out there that I can use to find out which websites are the biggest drain on my Windows 2003 web server's resources? The server has been steadily slowing to a crawl and I want to know which sites should get priority for troubleshooting.

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• How to best tune a Linux development machine?

  - by cletus

  How to best tune a Linux PC for development purposes?

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• Debian tuning for increasing read/write buffer.

  - by Claudiu

  Is there a way to modify Debian settings so the memory could be used more for disk read/write caching ? I am already using RAID 0 but thats not enough for multiple users, and the disk is almost struggled. Torrents use the disk very much and rTorrent doesn't have cache settings.

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• PHP5 without PHP4 compatibility

  - by Serty Oan

  This is the opposite question of this one. My purpose is that there is no need when you write only PHP5 code to have PHP4 compatibility. It is not helpful at all and due to differences between object models in those two version, it must be penalizing on interpreter performances (or am I wrong ?). So my questions are : is it possible to recompile PHP5 without retrocompatibility with PHP4 or to disable it in any other way to gain performances ? if it is not possible, is there a project somewhere which aim that goal ?

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• Centos running Apache Tomcat keep getting "java.net.SocketException: Too many open files"

  - by Gerard Moroney

  We're running Apache Tomcat 7.0.41 on CentOS 6 with java version "1.7.0_21". We were getting a lot of too many open files errors so I did some research. The consensus was that it was to to with the number of open files. So I did the following: Increased max files in /etc/security/limits.conf soft nofile 100000 hard nofile 100000 Rebooted the server Checked the limits were valid for the user which was to run the process [app_admin@xxx ~]$ ulimit -Hn 100000 [app_admin@xxx ~]$ ulimit -Sn 100000 Monitored open files on the server using the lsof command What I observed was when the total open files reached circa 13000 and tomcat had around 4500 open files the error reappeared. I am confused. I thought it would have resolved the problem but clearly I don't fully understand the root cause and also how to set the parameter correctly. To (maybe) help I have not modified the server.xml file for Tomcat (although I'm tempted). I don't want to start fiddling with that and make things worse. I'm more than happy to share any more information if someone can give me some hints on where to start looking.

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• HP Probook 4530s great specs, but lagging. Hard Drive?

  - by Mark

  I have this laptop, which has a i3 processor, 4gb memory, 7200rpm hard drive. So there is nothing wrong with the specs. Even when I have no applications open, simply closing and opening windows, lags. Or opening the start menu, or dragging icons across the desktop. sometimes even the cursor lags. So I checked out the resource monitor, and the resources using disk activity are svchost Avast ------- my antivirus, but not much System (PID 4) ------ This is using a huge chunk The total disk activity fluctuates between %50 - %100

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• How to measure Citrix receiver video buffer framerate?

  - by Rex Hardin

  How can I measure Citrix receiver framerate at the client end? I've tried FRAPS, but that doesn't seem to work. Is there a way to determine how many "frames" are sent per second from the client side? Assume a Windows 7 client connecting to a Windows 7 VM using the Citrix web plugin. To restate the question, how could I potentially measure the Citrix client's frame display rate for some 200px^2 area? Assume that the remote VM will try and play back a frame sequence at 24fps. Will any frames drop?

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• use of tcp_delack_min on redhat linux (kernel 2.6.18)

  - by user41466

  Hello, we're moving from Solaris to Redhat Linux, and trying to duplicate our low-latency setup, that, on solaris, includes the ndd settings related to TCP NO DELAY, and NAGLE ALGORITHM. I got the impression that those parameters are not all configurable system-wide, but still found some info. we have configured our applications to run with no nagle algorithm, but that is not sufficient. we have found an interesting RH article talking presenting the tcp_delack_min parameter, however, when browsing /proc/sys/net/ipv4/ , I can't find it there. would it be safe to assume that simply "adding" the parameter as it's said on the doc would be enough, or rather that the option is not supported by this version (would be strange, as RH specify that it "can be performed on a standard Red Hat Enterprise Linux installation") ? any other idea / recommendation to improve latency further ? thanks

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• Very low throughput on 10GbE network

  - by aix

  I have two Linux machines, each equipped with a Solarflare SFN5122F 10GbE NIC. The two NICs are connected together with an SFP+ Direct Attach cable. I am using netperf to measure TCP throughput between the two machines. On one box, I run: netserver and on the other: netperf -t TCP_STREAM -H 192.168.x.x -- -m 32768 I get: MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 192.168.x.x (192.168.x.x) port 0 AF_INET Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 32768 10.02 1321.34 The measured throughput is 1.3Gb/s. This is 7.5x below the theoretical maximum, and only 30% faster than 1GbE. What steps can I take to troubleshoot this?

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• SQL Server Management Studio Reports: Why no open transactions?

  - by Sleepless

  On a server with several hundred user connections, when I open the SQL Server 2008 SP1 Management Studio report "Database - User Statistics", the result page shows the following results: Login Name: appUser Active Sessions: 243 Active Connections: 243 Open Transactions: 374 Still, when I open the report "Database - All Transactions" on the same DB, it doesn't show any connections ("Currently, there are no transactions running for [Database Name] Database"). What gives? Is this a bug in Management Studio? This is not the only report where this kind of behavious happens... Thanks all!

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• perf tuning for ESX vmfs3 on RAID

  - by maruti

  looking for recommendations on ESX4 OS - VMFS version3: RAID-5 : matching the stripe size with VMFS block size? (64K, 128K etc) RAID controller options: "adaptive read ahead, write-back" on PERC 6i 90% VMs on server are Windows (2008, 2003, Vista etc, SQL 2005 etc) i have read that smaller stipes are good for writes and larger for reads. Since this is virtual env, not sure whats good.

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• SQL Server 2008 Web VS SQL Server 2008 Enterprise

  - by Jeremy

  I wrote an application a few months ago, and was hosting it out of our offices on a workstation with an Intel Core 2 Quad Q8200 @ 2.33GHz, 8 GB RAM, Windows Server 2008 Enterprise and SQL Server 2008 Enterprise. Both the webserver and database server were run on the same machine. We had a huge influx in traffic, and moved ClubUptime.com, and got 2 of their top teir windows VMs. The Database server runs Windows 2008 R2 Standard and SQL Server 2008 R2 Web on 8 GB ram and an Intel Xeon e5620 @ 2.40GHz. Ever since switching, the database which used to run at around 400MB in RAM now runs at around 4-7GB, and there haven't been any changes to it (other than a couple columns here and there). Our traffic has quadrupled, and our DB is 6 GB on disk, why would SQL server take up 7 GB if the DB is only 6. And why would it be storing the ENTIRE database in memory? Another thing is why growing 4 times in size did the database's memory footprint grow 12 times? Last question: Why does the CPU peg at 100% now where it didn't before? The design is simple, VERY few joins, NO subqueries. I am just at a loss, unless it is the SQL server edition, or the fact that I moved from real hardware to a VM.

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• Can anyone explain these differences between two similar i7 processors? [closed]

  - by Brian Frost

  I have two systems I've just built. They both have i7 processors and Asus P8Z77 motherboards. When I run a simple processor loop benchmark that I wrote in Delphi some time back I get one machine showing nealry twice as fast as the other. I then used CPU-Z to dump me the details of the hardware and I see that the fast machine shows: Processor 1 ID = 0 Number of cores 4 (max 8) Number of threads 8 (max 16) Name Intel Core i7 2700K Codename Sandy Bridge Specification Intel(R) Core(TM) i7-2700K CPU @ 3.50GHz Package (platform ID) Socket 1155 LGA (0x1) CPUID 6.A.7 Extended CPUID 6.2A Core Stepping D2 Technology 32 nm TDP Limit 95 Watts Core Speed 3610.7 MHz Multiplier x FSB 36.0 x 100.3 MHz Stock frequency 3500 MHz the slow machine shows: Processor 1 ID = 0 Number of cores 4 (max 8) Number of threads 8 (max 16) Name Intel Core i7 2600K Codename Sandy Bridge Specification Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz Package (platform ID) Socket 1155 LGA (0x1) CPUID 6.A.7 Extended CPUID 6.2A Core Stepping D2 Technology 32 nm TDP Limit 95 Watts Core Speed 1648.2 MHz Multiplier x FSB 16.0 x 103.0 MHz Stock frequency 3400 MHz i.e the slow machine has a 2600k to the fast machine 2700k. The very different "Multiplier x FSB" must be significant but I dont understand how two processors with a very 'similar' number can be so different. To get the machines the same must I copy the processors or is there some clever setting that I can change? Thanks for any help. Brian.

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• SQL Server not releasing Memory

  - by noob2487

  I am using SQL Server 2005. I am running a job which processes around 100 K records. Job runs fine, it takes are 45 mins to execute, which is good. But after that job is processed, I can see instance of SQL Server 2005 still there with around 900 MB of Memory. I waited for around 2 hrs but that memory was not released. Is there any process which takes care of memory here, something like GC (unpredictable) Or am I doing something wrong???

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• iptables, blocking large numbers of IP Addresses

  - by Twirrim

  I'm looking to block IP addresses in a relatively automated fashion if they look to be 'screen scraping' content from websites that we host. In the past this was achieved by some ingenious perl scripts and OpenBSD's pf. pf is great in that you can provide it nice tables of IP addresses and it will efficiently handle blocking based on them. However for various reasons (before my time) they made the decision to switch to CentOS. iptables doesn't natively provide the ability to block large numbers of addresses (I'm told it wasn't unusual to be blocking 5000+), and I'm a bit cautious over adding that many rules into an iptable. ipt_recent would be awesome for doing this, plus it provides a lot of flexibility for just severely slowing down access, but there is a bug in the CentOS kernel that is stopping me from using it (reported, but awaiting fix). Using ipset would entail compiling a more up-to-date version of iptables than comes with CentOS which whilst I'm perfectly capable of doing it, I'd rather not do from a patching, security and consistency perspective. Other than those two it looks like nfblock is a reasonable alternative. Is anyone aware of other ways of achieving this? Are my concerns about several thousand IP addresses in iptables as individual rules unfounded?

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• Disable Offline Files (mobsync.exe) on Windows 7 Home

  - by Synetech

  This morning I was watching the CPU graph of a Windows 7 Home laptop and noticed that every few seconds, the CPU would spike several percent. I watched the processes and determined that it was mobsync.exe (Offline Files) that was the culprit. I tried the usual steps that Googling turns up, and clicking the Manage Offline Files link to bring up the Offline Files dialog to click Disable Synch does not work because the dialog will not display. This makes sense since everything I have read indicates that Offline Files is not even included/supported in the Home version, so I am at a loss as to why it is running at all, let alone why it is sucking up CPU cycles. (My best guess is that it was started when they pressed Win+X to access the Mobility Center.) Of course I can just kill mobsync, but it could always just come back. How/why would mobsync be running on a Home version and how can it be disabled (of course the Group Policy editor is not available on a Home version).

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