M
MC
Hi Guys,
I am running into this problem and cannot figure out what
is causing it.
assumptions: Ran Online Virus scan with Housecall, Norton
online scan.- no virus found
Have run spyware check, ad-aware,
spybot checker - no spyware found
Ran spyware at startup- nothing found
I have Ran SFC /SCANNOW
No New hardware has been installed
System has the latest BIOS version.
1) I am running Win 2000 Srv SP4, when I open task manager
and see the Process: System ( Not System Idle ) is taking
85- 95% of the cpu all the time.
2) I ran utilities like pstat, pviewer, process viewer to
find out the thread that is taking up the processor.
After analysis of all the data from these utilities, found
ACPI.sys to be taking average 35% of processor, now I
needed to figure out what is using rest of the processor.
3) Ran across a utility called processexplorer
(http://www.sysinternals.com/ntw2k/freeware/procexp.shtml )
, this utility laid out everything in Black and white.
Processexplorer utility shows that
a) APCI.sys takes average 35% cpu, sometimes heigher
b) DPC takes average 55% cpu sometimes heigher
c)Interrupts take 11% cpu- interrupts are as high as
22.
Here is the ouptput I got from processexplorer-
----------------------------------------------------------
Process PID CPU Description
Company Name
System Idle Process 0 5
Interrupts n/a 11-- Hardware Interrupts
DPCs n/a 55-- Deferred Procedure
Calls
System 8 29-- ( ACPI.SYS is a
thread running under system )
SMSS.EXE 200 Windows NT Session
Manager Microsoft Corporation
explorer.exe 2028 Windows Explorer
Microsoft Corporation
vptray.exe 2424
Norton AntiVirus Symantec Corporation
IEXPLORE.EXE 3016 Internet Explorer
Microsoft Corporation
procexp.exe 3008 Sysinternals
Process Explorer Sysinternals
Process: Procexp Pid: -1
-----------------------------------------------------------
I can not figure out what is causing it. All suggestions
welcome.
Why DPCs are so high, I have checked other servers and the
DPC does not take any cpu time at all and same with
interrupts and ACPI.sys.
Thank you,
MC
I am running into this problem and cannot figure out what
is causing it.
assumptions: Ran Online Virus scan with Housecall, Norton
online scan.- no virus found
Have run spyware check, ad-aware,
spybot checker - no spyware found
Ran spyware at startup- nothing found
I have Ran SFC /SCANNOW
No New hardware has been installed
System has the latest BIOS version.
1) I am running Win 2000 Srv SP4, when I open task manager
and see the Process: System ( Not System Idle ) is taking
85- 95% of the cpu all the time.
2) I ran utilities like pstat, pviewer, process viewer to
find out the thread that is taking up the processor.
After analysis of all the data from these utilities, found
ACPI.sys to be taking average 35% of processor, now I
needed to figure out what is using rest of the processor.
3) Ran across a utility called processexplorer
(http://www.sysinternals.com/ntw2k/freeware/procexp.shtml )
, this utility laid out everything in Black and white.
Processexplorer utility shows that
a) APCI.sys takes average 35% cpu, sometimes heigher
b) DPC takes average 55% cpu sometimes heigher
c)Interrupts take 11% cpu- interrupts are as high as
22.
Here is the ouptput I got from processexplorer-
----------------------------------------------------------
Process PID CPU Description
Company Name
System Idle Process 0 5
Interrupts n/a 11-- Hardware Interrupts
DPCs n/a 55-- Deferred Procedure
Calls
System 8 29-- ( ACPI.SYS is a
thread running under system )
SMSS.EXE 200 Windows NT Session
Manager Microsoft Corporation
explorer.exe 2028 Windows Explorer
Microsoft Corporation
vptray.exe 2424
Norton AntiVirus Symantec Corporation
IEXPLORE.EXE 3016 Internet Explorer
Microsoft Corporation
procexp.exe 3008 Sysinternals
Process Explorer Sysinternals
Process: Procexp Pid: -1
-----------------------------------------------------------
I can not figure out what is causing it. All suggestions
welcome.
Why DPCs are so high, I have checked other servers and the
DPC does not take any cpu time at all and same with
interrupts and ACPI.sys.
Thank you,
MC