Re: sched: Performance of Trade workload running inside VM

From: Peter Zijlstra
Date: Wed Feb 15 2012 - 12:26:40 EST


On Wed, 2012-02-15 at 22:40 +0530, Srivatsa Vaddagiri wrote:
> Isn't it already broken in some respect, given that
> select_idle_sibling() could select a cpu which is different from
> wakeup
> source (thus forcing a task to run on a cpu different from wakeup
> source)?

select_idle_sibling() should keep it in the same cache domain, thereby
reducing pain and increasing parallelism.
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