Windows Vista Forums

CPU usage spikes

  1. #1


    mikebo Guest

    CPU usage spikes

    I have a Toshiba notebook with Vista Business installed. Recently I installed
    tghe sidebar and added the "CPU performance meter" and noticed that it was
    constantly in motion. Looking at the Performance tab in task manager, I see
    that the CPU(s) (dual core) are very priodically show spikes. Every 4 to 5
    seconds, the usage jumps from perhaps 10% to 70-80 %, and then goes back to
    10%. The laptop shows this bahavior over long periods of time, even if no
    application is running. Looking at the processe that are running, it appears
    that one of the "svchost.exe" (of which there are quite a few) seems to be
    the culprit, but I have no idea what is behind it. How do I find out what
    this process is actually doing? Can I simply end it to see what happens, or
    will that harm my laptop?

      My System SpecsSystem Spec

  2.   


  3. #2


    mikebo Guest

    RE: CPU usage spikes

    Ok, so since I'm impatient, I just ended the process. I immediately got a
    message that the "DCOM Server Process launcher" had stopped and that I had to
    reboot Windows. The CPU usage immediately quieted down. Does anybody know why
    this process requires so much CPU time?

    Then again, I just tried it again, and this time it was the "Plug and Play
    Service" that shut down. But it has again quieted the CPU usage to a base
    level of perhaps 10%.

    What's going on here?

    "mikebo" wrote:

    > I have a Toshiba notebook with Vista Business installed. Recently I installed
    > tghe sidebar and added the "CPU performance meter" and noticed that it was
    > constantly in motion. Looking at the Performance tab in task manager, I see
    > that the CPU(s) (dual core) are very priodically show spikes. Every 4 to 5
    > seconds, the usage jumps from perhaps 10% to 70-80 %, and then goes back to
    > 10%. The laptop shows this bahavior over long periods of time, even if no
    > application is running. Looking at the processe that are running, it appears
    > that one of the "svchost.exe" (of which there are quite a few) seems to be
    > the culprit, but I have no idea what is behind it. How do I find out what
    > this process is actually doing? Can I simply end it to see what happens, or
    > will that harm my laptop?

      My System SpecsSystem Spec

  4. #3


    David P. Guest

    Re: CPU usage spikes

    Svchost.exe is an integral part of Windows Vista (and XP) and it is normal
    to see more than one instance of it running.

    Periodic spikes in CPU activity as Vista is operating in the background are
    normal. No harm to your computer.

    Quit worrying and enjoy the darn thing.



    "mikebo" <mikebo@xxxxxx> wrote in message
    news:5E4DF430-72DF-45E2-BB01-DECD79103A86@xxxxxx

    > I have a Toshiba notebook with Vista Business installed. Recently I
    > installed
    > tghe sidebar and added the "CPU performance meter" and noticed that it
    > was
    > constantly in motion. Looking at the Performance tab in task manager, I
    > see
    > that the CPU(s) (dual core) are very priodically show spikes. Every 4 to 5
    > seconds, the usage jumps from perhaps 10% to 70-80 %, and then goes back
    > to
    > 10%. The laptop shows this bahavior over long periods of time, even if no
    > application is running. Looking at the processe that are running, it
    > appears
    > that one of the "svchost.exe" (of which there are quite a few) seems to be
    > the culprit, but I have no idea what is behind it. How do I find out what
    > this process is actually doing? Can I simply end it to see what happens,
    > or
    > will that harm my laptop?

      My System SpecsSystem Spec

  5. #4


    mikebo Guest

    Re: CPU usage spikes

    Are you saying that it is normal for Vista to burn 60% of the processor power
    of a 2.2 GB core duo processor on background tasks?

    "David P." wrote:

    > Svchost.exe is an integral part of Windows Vista (and XP) and it is normal
    > to see more than one instance of it running.
    >
    > Periodic spikes in CPU activity as Vista is operating in the background are
    > normal. No harm to your computer.
    >
    > Quit worrying and enjoy the darn thing.
    >
    >
    >
    > "mikebo" <mikebo@xxxxxx> wrote in message
    > news:5E4DF430-72DF-45E2-BB01-DECD79103A86@xxxxxx

    > > I have a Toshiba notebook with Vista Business installed. Recently I
    > > installed
    > > tghe sidebar and added the "CPU performance meter" and noticed that it
    > > was
    > > constantly in motion. Looking at the Performance tab in task manager, I
    > > see
    > > that the CPU(s) (dual core) are very priodically show spikes. Every 4 to 5
    > > seconds, the usage jumps from perhaps 10% to 70-80 %, and then goes back
    > > to
    > > 10%. The laptop shows this bahavior over long periods of time, even if no
    > > application is running. Looking at the processe that are running, it
    > > appears
    > > that one of the "svchost.exe" (of which there are quite a few) seems to be
    > > the culprit, but I have no idea what is behind it. How do I find out what
    > > this process is actually doing? Can I simply end it to see what happens,
    > > or
    > > will that harm my laptop?
    >
    >

      My System SpecsSystem Spec

  6. #5


    tempting2taanzaa Guest

    Re: CPU usage spikes

    Don't feel alone on this one. I am having the same issue, same brand
    machine, Home Premium installed and svchost.exe the villain.

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    "mikebo" <mikebo@xxxxxx> wrote in message
    news:5E4DF430-72DF-45E2-BB01-DECD79103A86@xxxxxx

    >I have a Toshiba notebook with Vista Business installed. Recently I
    >installed
    > tghe sidebar and added the "CPU performance meter" and noticed that it
    > was
    > constantly in motion. Looking at the Performance tab in task manager, I
    > see
    > that the CPU(s) (dual core) are very priodically show spikes. Every 4 to 5
    > seconds, the usage jumps from perhaps 10% to 70-80 %, and then goes back
    > to
    > 10%. The laptop shows this bahavior over long periods of time, even if no
    > application is running. Looking at the processe that are running, it
    > appears
    > that one of the "svchost.exe" (of which there are quite a few) seems to be
    > the culprit, but I have no idea what is behind it. How do I find out what
    > this process is actually doing? Can I simply end it to see what happens,
    > or
    > will that harm my laptop?

      My System SpecsSystem Spec

  7. #6


    feroz3 Guest

    Re: CPU usage spikes

    Using 60% CPU is NOT normal. Plug & Play Service and DCOM Launcher are
    both launched by SVChost, but they should never use that much of CPU.
    Something is definitely not OK. I started facing the same problem
    starting a a few days ago.

    I have Vista with SP1 and ALL the updates. The normal CPU usage was
    around 2% to 5% when the laptop was on idle until Windows downloaded
    some updates within the last week (around 7th April '08 onwards). I
    noticed this a couple of days ago when my laptop battery life dropped
    from 2.5 hours to around 1 hour. My HDTV recordings also started
    stuttering. So David P, this is not normal. Anyway I checked what
    process/activity was causing this and it turned out to be svchost
    (plug & play service and dcom launcher) using excessive CPU and
    accessing the hard drive. This only started happening after the latest
    windows update (between 7th and 12th April '08).

    What have they messed up this time?

      My System SpecsSystem Spec

  8. #7



    Member
    Join Date : Aug 2008
    Posts : 65
    vista home premium 32 bit
    Local Time: 07:08 PM


     

    Re: CPU usage spikes

    Ok --- so what's the conclusion to this whole matter. It's the svchost.exe, but how do we fix it so this thing doesn't keep spinning up so fast that one fears one's laptop is going to spin off into orbit?
    Mine only began doing this last week, but something weird and wonderful is not so wonderful. David P says it's normal --- of course it is not. Help would be appreciated!

      My System SpecsSystem Spec

  9. #8


    DDW Guest

    Re: CPU usage spikes

    On Tue, 2 Dec 2008 04:51:29 -0600, ripsnort <guest@xxxxxx-email.com>
    wrote:

    >
    >Ok --- so what's the conclusion to this whole matter. It's the
    >svchost.exe, but how do we fix it so this thing doesn't keep spinning up
    >so fast that one fears one's laptop is going to spin off into orbit?
    >Mine only began doing this last week, but something weird and wonderful
    >is not so wonderful. David P says it's normal --- of course it is not.
    >Help would be appreciated!
    Start a new thread. The one you replied to died long ago.

    DDW
    --
    Reply via this group
    No email please

      My System SpecsSystem Spec

  10. #9



    Member
    Join Date : Aug 2008
    Posts : 65
    vista home premium 32 bit
    Local Time: 07:08 PM


     

    Re: CPU usage spikes

    Oh so sorry --- hope the lads that were involved in this though, survived.

      My System SpecsSystem Spec


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