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ML150G3: High CPU Usage by Hardware Interrupts

Dipesh Mehta
Occasional Contributor

ML150G3: High CPU Usage by Hardware Interrupts

Hello,

I have Proliant ML150 G3 server installed with Windows 2003 Enterprise.

For approx a month, my server's performance has gone too down. While investigating about the issues, I found 'Hardware Interrupts' are consuming more CPU power. Its 20 to 50 all day with load or without load.

How can I find which device is causing interrupts?

Thanks in advance.

Dipesh
3 REPLIES
Johan Guldmyr
Honored Contributor

Re: ML150G3: High CPU Usage by Hardware Interrupts

Hi, hardware interrupts - like IRQ?

So it could be anything extra you have installed in a PCIe slot or basically anything connected to the system board?

Do you have anything connected/installed that is not supported? Done any changes lately?

Have you tried running any diagnostics?

Like memtest86 or HP offline diagnostics -

see this link for the hp off. diags:

http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareIndex.jsp?lang=en&cc=us&prodNameId=3279687&prodTypeId=15351&prodSeriesId=1163831&swLang=8&taskId=135&swEnvOID=1005

Dipesh Mehta
Occasional Contributor

Re: ML150G3: High CPU Usage by Hardware Interrupts

Hello,

Thanks for immediate reply.

1. No - I haven't made any hardware changes or connected/disconnected any new hardware to the server.

In fact, the server had been working fine for over a period of 3 years, it has started problem just before a month or so.

2. I am going to download, HP Offline Diag Tool as you suggested. Does it require my server to go down?

Dipesh
Johan Guldmyr
Honored Contributor

Re: ML150G3: High CPU Usage by Hardware Interrupts

2- Yes. Same for the memtest86.

But, there are some other downloads in that link.

Like the ADU - that you can use to check the array (online).

Also, maybe the windows event logs can be of some assistance?