Messages in this thread | | | Date | Wed, 06 Jul 2011 12:37:54 -0400 | From | Rik van Riel <> | Subject | Re: [PATCH v5 7/9] KVM-GST: KVM Steal time accounting |
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On 07/04/2011 11:32 AM, Glauber Costa wrote: > This patch accounts steal time time in account_process_tick. > If one or more tick is considered stolen in the current > accounting cycle, user/system accounting is skipped. Idle is fine, > since the hypervisor does not report steal time if the guest > is halted. > > Accounting steal time from the core scheduler give us the > advantage of direct acess to the runqueue data. In a later > opportunity, it can be used to tweak cpu power and make > the scheduler aware of the time it lost. > > Signed-off-by: Glauber Costa<glommer@redhat.com> > CC: Rik van Riel<riel@redhat.com> > CC: Jeremy Fitzhardinge<jeremy.fitzhardinge@citrix.com> > CC: Peter Zijlstra<peterz@infradead.org> > CC: Avi Kivity<avi@redhat.com> > CC: Anthony Liguori<aliguori@us.ibm.com> > CC: Eric B Munson<emunson@mgebm.net>
Acked-by: Rik van Riel <riel@redhat.com>
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