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SubjectRe: [PATCH v1] sched: fix nohz idle load balancer issues
* Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com> [2011-09-28 19:47:01]:

> * Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com> [2011-09-28 10:04:27]:
>
> > > Especially with higher number of logical CPUs. Likely cleaner way is to clear
> > > first_pick, second_pick on idle instead of clearing on tickless.
> >
> > I think I tried that (cleared first/second_pick_cpu in
> > nohz_kick_needed() upon idle) but didn't get the best results.

which perhaps was beause I was relying on idle_at_tick (which can be
stale information as Suresh pointed out).

- vatsa


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