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Win98SE System Monitor CPU% Misreporting?

Posted on 2000-05-14
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Last Modified: 2013-12-28
After just upgrading to Win98SE from Win95 when I go to look at System Monitor it reports the CPU% usage at very strange levels. In Win95 after startup it typically reported around 3-5%, in Win98SE it reports anything from 0-82% (and varies a lot). If I move the mouse in Sysmon the usage drops down to 0% for a brief time then back up (this a known problem according to M$ KB). Win98SE doesn't seem to be slowing at all, and I presume that system monitor is misreporting the processor usage. I even end-tasked and killed all apps (incl. hidden ones) down to just explorer.exe, kernel32.dll and the bare essentials and still had 67% processor usage. Is there anywhere I can download a patch to fix Sysmon? I tried Safe-Mode and got 'PERF Device driver could not be loaded' when trying to run sysmon. I also turned on HDD DMA a few days back, but turning this off makes no difference. Can anyone help me understand what's going on here?
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Question by:peterchamberlin
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Expert Comment

by:sorgie
ID: 2808339
Try add remove program, click the windows setup tab, Delete System monitor
reboot and reinstall it.
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Author Comment

by:peterchamberlin
ID: 2808819
I tried that, it made no difference. I've also noticed that when I run Media Player or WinAmp the processor usage drops to usage I'd normally expect (5-15%). I belive the problem lies with the PERF device driver, which may have been more recent in Win95 and so wasn't downgraded in the Win98 upgrade, perhaps this explains the problems? It all seems to lie with vmm32.vxd from where sysmon.exe gets it's information. Any ideas?
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Accepted Solution

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guldur earned 100 total points
ID: 2963331
Try disabling ACPI in bios.
If you want to keep that, you have to lived with......
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Author Comment

by:peterchamberlin
ID: 2966330
There isn't a listing in the BIOS for ACPI directly, but there is one for enabling BIOS Power Management, from that description I think it would be safest to leave it enabled and never look at the system monitor processor reporting. After talking to some other contacts who have upgrading from Win95 to 98se they have also expierenced this (and other) problems, however those doing a clean Win98 install had no such problems. Oh well, the search continues...
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