RE: [Xen-devel] Question about CPU utilization

["Neugebauer, Rolf" <rolf.neugebauer@xxxxxxxxx>]

> -----Original Message-----
> From: xen-devel-admin@xxxxxxxxxxxxxxxxxxxxx [mailto:xen-devel-
> admin@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of Steven Hand
> Sent: 20 January 2005 08:51
> To: Matt Ayres
> Cc: Eric Tessler; xen-devel@xxxxxxxxxxxxxxxxxxxxx;
> Steven.Hand@xxxxxxxxxxxx
> Subject: Re: [Xen-devel] Question about CPU utilization
> 
> 
> >On Wed, 2005-01-19 at 17:23 -0800, Eric Tessler wrote:
> >> Is there anyway to get the CPU utilization for a machine as a whole
-
> >> one that includes all domains (domain 0 + domain U)?
> >>
> >> Eric
> >>
> >
> >Just to chime in... I don't believe this feature exists, but it seems
to
> >be one that many people desire.  Some sort of tool to be able to view
> >resource usage of domains in a real-time environment (xentop?) with a
> >"batch" option for scripts would be ideal.
> 
> This is on our feature list - one way we had thought of doing it was
> to fake out a process in dom0 for each domU, and just have top report
> the (aggregate) usage for each domain, but there are other options too
> for the way the data is presented.  Using an event channel to either
> push or poll for load averages is probably the basic underlying
> functionality required.

Also, the dom0 interface already allows you to get information about
each domain which includes the CPU usage from each domain (total of CPU
seconds consumed). One could write a little utility to periodically poll
this info and calculate the load average. I vaguely recall someone
posting such a script a while back. 

Rolf


> 
> cheers,
> 
> S.
> 
> 
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