Hey everyone, We are runing a Netfinity 5100 dual 933MHz with 1GB mem, RAID5 Win2000 SP4 Exchange 2000 SP3 My server jumps to 80 to 100% CPU Utilization caused by Interrupts/sec jumping from average 1200 to 70000 (dual CPU) I need to reboot the server to get it back to normal, for about 48 hours, and then all over again. I need help in drilling down the cause of this issue causing high CPU utilization and slow response on Exchange. High Interrupts/sec ocurr randomly after maybe 8 to 48 hours of operation. What i found is that in "normal" operation CPU 0 has about 1100 interrupts/sec and CPU 1 about 150 Question 1. Is this normal CPU behaviour? should it be balanced? Question 2. Can I savely assume that I have a hardware Issue? Question 3. What other counter do I need to pull up to isolate the device in question? Question 4. Is there a Windows tool that shows me the Kernel times per device or process? Any suggestions are welcome. Jan.
Sounds like disk iosub-system thrashing, swap page memory access is excessive but this is just a guess. "Helpdesk" wrote in message news:e#4UyIKKFHA.1308@TK2MSFTNGP15.phx.gbl... > Hey everyone, > > We are runing a Netfinity 5100 dual 933MHz with 1GB mem, RAID5 > Win2000 SP4 Exchange 2000 SP3 > > My server jumps to 80 to 100% CPU Utilization caused by Interrupts/sec > jumping from average 1200 to 70000 (dual CPU) > I need to reboot the server to get it back to normal, for about 48 hours, > and then all over again. > I need help in drilling down the cause of this issue causing high CPU > utilization and slow response on Exchange. > High Interrupts/sec ocurr randomly after maybe 8 to 48 hours of operation. > > What i found is that in "normal" operation CPU 0 has about 1100 > interrupts/sec and CPU 1 about 150 > > Question 1. Is this normal CPU behaviour? should it be balanced? > Question 2. Can I savely assume that I have a hardware Issue? > Question 3. What other counter do I need to pull up to isolate the device in > question? > Question 4. Is there a Windows tool that shows me the Kernel times per > device or process? > > Any suggestions are welcome. > > Jan. > > > >
Try iisstate at the following link to see what Inetinfo.exe is doing. Also you did not state if you are using a third party av or spam tool on your exchange server. http://www.microsoft.com/resources/documentation/IIS/6/all/techref/en-us/iisRG_IIS_7.mspx Geoff Pearce "Helpdesk" wrote in message news:e%234UyIKKFHA.1308@TK2MSFTNGP15.phx.gbl... > Hey everyone, > > We are runing a Netfinity 5100 dual 933MHz with 1GB mem, RAID5 > Win2000 SP4 Exchange 2000 SP3 > > My server jumps to 80 to 100% CPU Utilization caused by Interrupts/sec > jumping from average 1200 to 70000 (dual CPU) > I need to reboot the server to get it back to normal, for about 48 hours, > and then all over again. > I need help in drilling down the cause of this issue causing high CPU > utilization and slow response on Exchange. > High Interrupts/sec ocurr randomly after maybe 8 to 48 hours of operation. > > What i found is that in "normal" operation CPU 0 has about 1100 > interrupts/sec and CPU 1 about 150 > > Question 1. Is this normal CPU behaviour? should it be balanced? > Question 2. Can I savely assume that I have a hardware Issue? > Question 3. What other counter do I need to pull up to isolate the device > in > question? > Question 4. Is there a Windows tool that shows me the Kernel times per > device or process? > > Any suggestions are welcome. > > Jan. > > > >
