Messages in this thread | | | Date | Mon, 27 Feb 2012 10:40:21 +0530 | From | Srivatsa Vaddagiri <> | Subject | Re: [PATCH v5] sched: Avoid unnecessary work in reweight_entity |
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* Michael Wang <wangyun@linux.vnet.ibm.com> [2012-02-27 13:07:28]:
> > Is that benchmark run in root (cpu) cgroup? If so, reweight_entity() should not > > kick in at all. > > > That's right, if no children group, 'reweight_entity' won't be called, so I have > created a cpuset group under root group named 'rg1', and created a memory group > under 'rg1' named 'sub', I attached the current shell to the 'sub' cgroup.
'cpu' and 'cpuset' cgroup resource controllers are separate. By above steps, you would still be running kern-bench in root cgroup as far as cpu cgroup controller is concerned ..
- vatsa
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