Interpreting ProcessExplorer values, need Help
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> Hi, i've downloaded Process Explorer and Process Monitor to investigate
> why
> svchost.exe keeps using 100% of my cpu when the system boots up.
>
> With process explorer i found svchost.exe uses 100% of the cpu, as task
> manager already says, but associated to svchost.exe there is a process
> called dwm.exe.
>
> The way Process Explorer shows me this fact is the following:
>
> -- other svchost processes here ----
>
> - svchost.exe Process Host for Windows Services
> dwm.exe Desktop Windows Manager
>
> -- other svcohst processes here ---
>
>
> Now: after the boot, i got 1 minute where at the right side of svchost.exe
> i got 100% cpu and dwm.exe rarely passes 5 - 10%.
>
> I would like to know if is svchost.exe that take 100% cpu or if is his
> "son process", dwm.exe, that takes all the CPU time.
>
> And in both cases, how can i operate?
>
> Thanks
> Davide
>
>
> In Process Explorer, if you hover your mouse over the svchost.exe that is
> using 100% of the CPU, you'll see a tooltip of all the services that are
> operating under that particular configuration of svchost.exe. There are
> quite a few. If you right-click on that process, and choose Properties,
> you'll get more details.
>
> The Desktop Windows Manager is basically
> responsible for the Aero User Interface. See:
>
> Under the Hood of the Desktop Window Manager
> http://blogs.msdn.com/greg_schechter...05/544314.aspx
>
> Vista takes a little time to get itself organized at first, it seems. On
> my
> computer, about 3 or 4 minutes after booting, that particular svchost
> process occasionally shows a 1.45% CPU blink, and that's about it.
> Ok, i right click on the svchost.exe process, choose services, and task
> manager shows me all the processes included in that istance of svchost. i
> got one svchost proess with 10 sub process, how can i understand wich is
> using all my cpu? There is not the CPU usage column... and no way to add
> that column.
>
>
>>> In Process Explorer, if you hover your mouse over the svchost.exe that is>
>> using 100% of the CPU, you'll see a tooltip of all the services that are
>> operating under that particular configuration of svchost.exe. There are
>> quite a few. If you right-click on that process, and choose Properties,
>> you'll get more details.
>>
>> The Desktop Windows Manager is basically
>> responsible for the Aero User Interface. See:
>>
>> Under the Hood of the Desktop Window Manager
>> http://blogs.msdn.com/greg_schechter...05/544314.aspx
>>
>> Vista takes a little time to get itself organized at first, it seems. On
>> my
>> computer, about 3 or 4 minutes after booting, that particular svchost
>> process occasionally shows a 1.45% CPU blink, and that's about it.
> When you right-click on the svchost that you are interested in, choose
> Properties. When that window pops up, click on the Threads tab, which has
> a column for CPU. You may have to do a little detective work (like
> clicking on the Module button on that page, to find out, under the Start
> Address column, what file is in play, and what service might be using it.
> Ok, i think i have found the guilt. I run Vista in italian, and the
> service is called "Ottimizzazione avvio" i suppose is translated into
> "Optimize boot" or something like this. The service name is SysMain. I
> disabled this one and now after the boot my system runs perfectly without
> degree of performance.
>
> Now: what does this service? Is essential?
>
> Davide
>
>
>
> "dean-dean" <dean-dean@discussions.microsoft.com> ha scritto nel messaggio
> news:4C09CC16-52DE-449F-9A3E-FECFFDF676F2@microsoft.com...>> When you right-click on the svchost that you are interested in, choose>
>> Properties. When that window pops up, click on the Threads tab, which
>> has a column for CPU. You may have to do a little detective work (like
>> clicking on the Module button on that page, to find out, under the Start
>> Address column, what file is in play, and what service might be using it.
> Ok, i think i have found the guilt. I run Vista in italian, and the
> service is called "Ottimizzazione avvio" i suppose is translated into
> "Optimize boot" or something like this. The service name is SysMain. I
> disabled this one and now after the boot my system runs perfectly without
> degree of performance.
>
> Now: what does this service? Is essential?
>
> Davide
>
>
>
> "dean-dean" <dean-dean@discussions.microsoft.com> ha scritto nel messaggio
> news:4C09CC16-52DE-449F-9A3E-FECFFDF676F2@microsoft.com...>> When you right-click on the svchost that you are interested in, choose>
>> Properties. When that window pops up, click on the Threads tab, which
>> has a column for CPU. You may have to do a little detective work (like
>> clicking on the Module button on that page, to find out, under the Start
>> Address column, what file is in play, and what service might be using it.
> Sysmain.dll is the Superfetch Service Host, and yes, it's supposed to
> optimize the opening of applications much like Prefetch did in Windows XP.
> Logically, it's the Superfetch service.
>
> "SuperFetch monitors which applications you use the most and preloads
> these into your system memory so they'll be ready when you need them."
> Quoted from:
>
> http://www.microsoft.com/windows/pro...uperfetch.mspx
>
> If you Google "Superfetch" you'll get a lot of information. Here's a
> pretty in depth article:
>
> Windows Vista's SuperFetch and ReadyBoost Analyzed
> http://www.tomshardware.com/2007/01/...boostanalyzed/
>
> On my computer, it's not causing much commotion. However, there are other
> posts in the Vista newsgroups by people experiencing what you are. The
> service is responsible for the folder C:\Windows\Prefetch, where it keeps
> its data. The service's default startup type is automatic. I do know
> that you have to let your computer "idle" for a period for it to initially
> get organized, creating your special layout.ini, as well as doing a
> certain amount of defragmenting. If you sort the Prefetch folder's files
> by Date Modified, you'll see the chronological order of data it has
> collected, as you use your computer, and what it has done while computer
> is on, but not used (i.e., "idle")(it does redo the layout.ini during this
> time (pretty much always), as well as a "miniature" defragmentation (not
> always). I would try leaving your computer on for about a half hour, at
> least, without it being used, to see if that helped your startup
> situation.
>
> It seems to have a direct bearing on this key in the registry:
>
> HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Dfrg\BootOpt imizeFunction
>
> You might want to look at the values "OptimizeComplete" and
> "OptimizeError" to see what your data is for those values, in the above
> key.
>
> "Davide" <davide.benatti@gmail.com> wrote in message
> news:CbOdnWAiasOIVJ7bRVnytQA@kpnqwest.it...>> Ok, i think i have found the guilt. I run Vista in italian, and the>
>> service is called "Ottimizzazione avvio" i suppose is translated into
>> "Optimize boot" or something like this. The service name is SysMain. I
>> disabled this one and now after the boot my system runs perfectly without
>> degree of performance.
>>
>> Now: what does this service? Is essential?
>>
>> Davide
>>
>>
>>
>> "dean-dean" <dean-dean@discussions.microsoft.com> ha scritto nel
>> messaggio news:4C09CC16-52DE-449F-9A3E-FECFFDF676F2@microsoft.com...>>> When you right-click on the svchost that you are interested in, choose>>
>>> Properties. When that window pops up, click on the Threads tab, which
>>> has a column for CPU. You may have to do a little detective work (like
>>> clicking on the Module button on that page, to find out, under the Start
>>> Address column, what file is in play, and what service might be using
>>> it.
> Thanks, dean-dean, i'll try looking into those values. Anyway, disabling
> it i do not experience heavy hard disk use and partial system block for
> high CPU Utilization any more
>
> Davide
>
>
> "dean-dean" <dean-dean@discussions.microsoft.com> ha scritto nel messaggio
> news:192076DD-11D9-4946-9057-22F9A3FC8A81@microsoft.com...>> Sysmain.dll is the Superfetch Service Host, and yes, it's supposed to>
>> optimize the opening of applications much like Prefetch did in Windows
>> XP. Logically, it's the Superfetch service.
>>
>> "SuperFetch monitors which applications you use the most and preloads
>> these into your system memory so they'll be ready when you need them."
>> Quoted from:
>>
>> http://www.microsoft.com/windows/pro...uperfetch.mspx
>>
>> If you Google "Superfetch" you'll get a lot of information. Here's a
>> pretty in depth article:
>>
>> Windows Vista's SuperFetch and ReadyBoost Analyzed
>> http://www.tomshardware.com/2007/01/...boostanalyzed/
>>
>> On my computer, it's not causing much commotion. However, there are
>> other posts in the Vista newsgroups by people experiencing what you are.
>> The service is responsible for the folder C:\Windows\Prefetch, where it
>> keeps its data. The service's default startup type is automatic. I do
>> know that you have to let your computer "idle" for a period for it to
>> initially get organized, creating your special layout.ini, as well as
>> doing a certain amount of defragmenting. If you sort the Prefetch
>> folder's files by Date Modified, you'll see the chronological order of
>> data it has collected, as you use your computer, and what it has done
>> while computer is on, but not used (i.e., "idle")(it does redo the
>> layout.ini during this time (pretty much always), as well as a
>> "miniature" defragmentation (not always). I would try leaving your
>> computer on for about a half hour, at least, without it being used, to
>> see if that helped your startup situation.
>>
>> It seems to have a direct bearing on this key in the registry:
>>
>> HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Dfrg\BootOpt imizeFunction
>>
>> You might want to look at the values "OptimizeComplete" and
>> "OptimizeError" to see what your data is for those values, in the above
>> key.
>>
>> "Davide" <davide.benatti@gmail.com> wrote in message
>> news:CbOdnWAiasOIVJ7bRVnytQA@kpnqwest.it...>>> Ok, i think i have found the guilt. I run Vista in italian, and the>>
>>> service is called "Ottimizzazione avvio" i suppose is translated into
>>> "Optimize boot" or something like this. The service name is SysMain. I
>>> disabled this one and now after the boot my system runs perfectly
>>> without degree of performance.
>>>
>>> Now: what does this service? Is essential?
>>>
>>> Davide
>>>
>>>
>>>
>>> "dean-dean" <dean-dean@discussions.microsoft.com> ha scritto nel
>>> messaggio news:4C09CC16-52DE-449F-9A3E-FECFFDF676F2@microsoft.com...
>>>> When you right-click on the svchost that you are interested in, choose
>>>> Properties. When that window pops up, click on the Threads tab, which
>>>> has a column for CPU. You may have to do a little detective work (like
>>>> clicking on the Module button on that page, to find out, under the
>>>> Start Address column, what file is in play, and what service might be
>>>> using it.
>>>
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