Messages in this thread | | | From | Nikunj A Dadhania <> | Subject | Re: [RFC PATCH 0/4] Gang scheduling in CFS | Date | Tue, 27 Dec 2011 15:40:51 +0530 |
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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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