Re: High CPU utilization by svchost and automatic updates processe
- From: Ricemt <Ricemt@xxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Mon, 23 Mar 2009 06:51:01 -0700
Sorry, I guess I left out many of the relevant details.
The systems in question are HP DC5100's with 2.8 Ghz Celeron processors and
512MB or 1 GB of memory and running XP SP2 or SP3. The memory and service
pack don't seem to make a difference.
Yes, they are updated by WSUS (Version: 3.1.6001.65).
Running process on the capture I'm currently looking at include:
Process Name File Time
lsass.exe 0
winlogon.exe 0
sdclientmonitor.exe 0
WinVNC.exe 0
WMPNetwk.exe 0
ctfmon.exe 0
Cpqdfwag.exe 0
iPodService.exe 0
uphclean.exe 0
WINWORD.EXE 0
LocalSch.EXE 0
igfxpers.exe 0
svchost.exe 0
ALsvc.exe 0
tmcsvc.exe 0.0004101
spoolsv.exe 0.0009303
SavService.exe 0.0232674
services.exe 0.0348336
support.exe 0.0397464
notepad.exe 0.0417357
OUTLOOK.EXE 0.0431455
BlitzMail.exe 0.0448974
svchost.exe 0.0529482
csrss.exe 0.0609516
wuauclt.exe 0.0689516
cmd.exe 0.1803052
Explorer.EXE 0.3250209
SideCar.exe 0.5419331
taskmgr.exe 0.8959313
softmon.exe 1.1609927
AcroRd32Info.exe 1.2844374
wmiprvse.exe 1.3755224
cisvc.exe 2.0968545
cidaemon.exe 12.4387084
svchost.exe 41.2095672
wuauclt.exe 42.8354778
The list of process are from a process monitor capture at the time when
windows update did a check for updates. The file times are what was reported
in the process activity summary.
The other interesting tidbit is that the average disk queue length hits
unacceptable levels while the systems are checking for updates. This is how I
correlated the system hangs with the windows update process.
It sounds like my next step should be the Clean Boot Troubleshooting you've
suggested.
Thanks,
-Mike
"PA Bear [MS MVP]" wrote:
What OSS are these "older machines"?.
Do they update via WSUS?
It's not unusual to see temporary and brief (e.g, 15-30 seconds, possibly a
little longer) spikes in CPU when AU kicks into gear.
What other Processes are running in the background when this occurs? Have
you tried Clean Boot troubleshooting the behavior/problem?
--
~Robear Dyer (PA Bear)
MS MVP-IE, Mail, Security, Windows Client - since 2002
AumHa VSOP & Admin http://aumha.net
DTS-L http://dts-l.net/
Ricemt wrote:
It takes several minutes for my older machines to check for updates. In
some
instances this causes a "hang" in which mouse and keyboard control is lost
for up to 15 seconds. With process monitor, I see svchost and wuauclt in
the
process activity monitor both use over 40 seconds of file time.
The workstation disks have been defragmented and I've run the server
cleanup
wizard on the WSUS (3.0) server. I've also re-indexed the database.
Does anyone have suggestions for speeding up the client scans or ideas as
to
what would cause this symptom?
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