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SubjectRe: [RFC PATCH 0/4] Gang scheduling in CFS
Date
On Tue, 27 Dec 2011 11:51:46 +0200, Avi Kivity <avi@redhat.com> wrote:
> On 12/27/2011 11:44 AM, Nikunj A Dadhania wrote:
> > > > I am seeing a drop of ~44% when setting yield_on_hlt = 0
> > > >
> > >
> > > A drop of 44% of what?
> > >
> > records/sec
> >
> > Ebizzy - 2VM running in parallel, both having gang scheduling enabled.
> >
> > yield_on_hlt=1 yield_on_hlt=0
> > EbzyRecords/sec 41955.50 23285.00 -44
> >
> >
>
> Interesting, are you overcommitting vcpus?
>
Yes(1:2). On a 8cpu machine, have 2VMs running, which is 8vcpus each.

Regards
Nikunj



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