Messages in this thread | | | Date | Tue, 13 Sep 2011 23:58:41 +0530 | From | Srivatsa Vaddagiri <> | Subject | Re: CFS Bandwidth Control - Test results of cgroups tasks pinned vs unpinnede |
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* Peter Zijlstra <a.p.zijlstra@chello.nl> [2011-09-13 20:19:55]:
> On Tue, 2011-09-13 at 23:24 +0530, Srivatsa Vaddagiri wrote: > > We saw considerably high migration count on latest tip compared to > > previous kernels. Kamalesh, can you please post the migration count > > data? > > Hrmm, yes this looks horrid.. even without cgroup crap, something's funny.
Yes ..we could visualize that very much in top o/p .. A task's cpu would keep changing *every* screen refresh (refreshed every 0.5 sec that too!).
We didn't see that with older kernels ..Kamalesh is planning to do a git bisect and see which commit lead to this "mad" hopping ..
- vatsa
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