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Re: [Xen-users] Measuring overall CPU utlization

  • To: "John A. Sullivan III" <jsullivan@xxxxxxxxxxxxxxxxxxx>
  • From: "Tim Wood" <twwood@xxxxxxxxx>
  • Date: Thu, 27 Apr 2006 13:45:37 -0400
  • Cc: Diwaker Gupta <diwaker.lists@xxxxxxxxx>, Peter Fokkinga <peter@xxxxxxxxxxx>, xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Thu, 27 Apr 2006 10:46:12 -0700
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>

I notice that the xentop and xenmon tools do not try to combine the CPU usage of an unpriveliged domain with the CPU usage done by dom0 on its behalf for IO.  Has any work been done for determining the "total" CPU usage of each unpriveliged domain?  For example, I may have an application running on a VM which is very IO intensive.  As a result, its CPU allocation may be very low, but dom0 will be doing quite a bit of work on its behalf.  Presumably this could be estimated to some degree by looking at the number of IO exchanges as reported by xenmon, but it seems like there should be a more precise way.

any suggestions or pointers?

On 4/26/06, John A. Sullivan III <jsullivan@xxxxxxxxxxxxxxxxxxx > wrote:
On Wed, 2006-04-26 at 14:07 -0700, Diwaker Gupta wrote:
> > <snip>
> > I'm sorry; I should have specified that I am running Xen 2.0.7.  I do
> > not see or have a xm top command.  What do I do in 2.0.7?
> This works for me in Xen 2.0.7 (or you can write a wrapper around 'xm
> list'). This is not guaranteed to be correct/accurate -- you at your
> own risk :-) :
That looks like it's working.  Thanks! - John
John A. Sullivan III
Open Source Development Corporation
+1 207-985-7880

Financially sustainable open source development

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