OpenStack Compute (nova)

Which instance is causing high load

Asked by Peter Borghard

I'm running into a problem where my compute node is showing a high load. I'm trying to determine which instance is causing this, any ideas? I will try to suspend each node one at a time to see if it drops off, however I'm wondering if there is a smarter way. Any thoughts would be appreciated.

Thank you,
Peter Borghard

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Peter Borghard
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John Garbutt (johngarbutt) said : 		#1

Depends, what hypervisor are you using? KVM? Xen?

Have you looked at what process is causing the problem?
If you are Xen maybe try xentop to see what that tells you.
Or myabe try virt-top?

Hope that helps.

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Peter Borghard (pborghard) said : 		#2

I'm using kvm, virt-top was perfect. just what I was looking for. For others looking at this in the future apt-get install -y virt-top

easy peasy.