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  1. #1
    Plutonium Lounger
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    SVCHOST.EXE compute bound (Windows XP SP2)

    I have one PC that sometimes runs very slowly when it restarts - it doesn't always do this, but more often than not. The problem lasts for 10 to 20 minutes and then it is OK.

    When it has the problem, task manager shows an instance of SVCHOST.EXE is using most of the CPU.
    I ran Process Explorer from Sysinternals and it showed the pid of the offending process
    I typed TASKLIST /SVC to a command prompt and the offending PID was the process controlling this lot:
    <code>
    AudioSrv, Browser, CryptSvc, Dhcp, dmserver,
    ERSvc, EventSystem, helpsvc, lanmanserver,
    lanmanworkstation, Netman, Nla, RasMan,
    Schedule, seclogon, SENS, SharedAccess,
    ShellHWDetection, srservice, TapiSrv,
    Themes, TrkWks, W32Time, winmgmt, wscsvc,
    wuauserv, WZCSVC
    </code>
    Anyone know what I can do next to troubleshoot this?

    Edited by StuartR to add
    I found the page in ProcessExplorer that allowed me to stop the services running under this process one by one, now to do a few reboots and learn a bit more.

    Still talking to myself
    It turns out that killing the Windows Firewall / Internet Connection Sharing (ICS) service cured the problem, so now I guess I have to install a third party firewall and disable the Windows one.

    StuartR

  2. #2
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    Re: SVCHOST.EXE compute bound (Windows XP SP2)

    Done you mean that you have been running all this time without a REAL firewall?
    <img src=/S/bif.gif border=0 alt=bif width=70 height=28> <img src=/S/cranky.gif border=0 alt=cranky width=18 height=25> <img src=/S/bash.gif border=0 alt=bash width=35 height=39> <img src=/S/wartgun.gif border=0 alt=wartgun width=73 height=24> <img src=/S/warts.gif border=0 alt=warts width=59 height=24> <img src=/S/smash.gif border=0 alt=smash width=30 height=26> <img src=/S/bwaaah.gif border=0 alt=bwaaah width=123 height=15>

    Now running HP Pavilion a6528p, with Win7 64 Bit OS.

  3. #3
    Plutonium Lounger
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    Re: SVCHOST.EXE compute bound (Windows XP SP2)

    Shameful isn't it. I had been relying on a combination of a hardware firewall and the standard Windows software firewall. Given the other defences in place, and my ultra-cautious browsing habits, this seemed sufficient.

    StuartR

  4. #4
    Silver Lounger
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    Re: SVCHOST.EXE compute bound (Windows XP SP2)

    Anyone know what I can do next to troubleshoot this?

    Visit WinTasks Process Library and find process information for each running process on your PC.

    From my experience I can tell that Windows Update running on regular schedule (usually once a day) uses svchost.exe to determine which updates are needed to install. On some computers (1 GHz CPU, 512 MB RAM) running Windows XP this process consumes 100% CPU for 3-5 minutes, which causes users' complains.

  5. #5
    Super Moderator jscher2000's Avatar
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    Re: SVCHOST.EXE compute bound (Windows XP SP2)

    I think I have had this problem with the Windows Update process. I have taken to starting up with the Ethernet cable disconnected from the wall socket. After everything calms down, then I plug in and don't have any problems with CPU usage.

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