RE: kvm ppc timing stats

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Well, in the example I'm looking at, which runs for 30
seconds, the "sum" column of the stats adds up to
about 10 seconds total.   So, there is 20 seconds
unaccounted for.

Interestingly enough, if I let the guest just sit 
idle for 30 seconds, the stats do sum up to about
30 seconds.

Will get to the bottom of it, but wanted to make
sure I was not missing something obvious.

Stuart


> -----Original Message-----
> From: Hollis Blanchard [mailto:hollis_blanchard@xxxxxxxxxx]
> Sent: Wednesday, December 01, 2010 6:27 PM
> To: Yoder Stuart-B08248
> Cc: kvm-ppc@xxxxxxxxxxxxxxx
> Subject: Re: kvm ppc timing stats
> 
> Yes, your understanding is correct (barring any bugs, of course). Why
do
> you think "time is missing"?
> 
> Hollis Blanchard
> Mentor Graphics, Embedded Systems Division
> 
> 
> On 12/01/2010 12:02 PM, Yoder Stuart-B08248 wrote:
> >
> > Hollis,
> >
> > Am looking at some performance data and want to make sure that
> >
> > I'm understanding things correctly with your CONFIG_KVM_EXIT_TIMING
> >
> > stuff.   If I reset the timing counters, run a workload
> >
> > under for a fixed duration (e.g. 30 seconds), and then look
> >
> > at the exit stats, I should see 30 seconds worth of time accounted
> >
> > for, correct?
> >
> > Right now I'm seeing a substantial amount of time "missing" and
> >
> > want to make sure I'm not missing something.
> >
> > Stuart
> >


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