Messages in this thread | | | Subject | Re: [patch v4 0/18] sched: simplified fork, release load avg and power awareness scheduling | From | Mike Galbraith <> | Date | Sun, 27 Jan 2013 16:51:43 +0100 |
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On Sun, 2013-01-27 at 21:25 +0800, Alex Shi wrote: > On 01/27/2013 06:35 PM, Borislav Petkov wrote: > > On Sun, Jan 27, 2013 at 05:36:25AM +0100, Mike Galbraith wrote: > >> With aim7 compute on 4 node 40 core box, I see stable throughput > >> improvement at tasks = nr_cores and below w. balance and powersaving. ... > > Ok, this is sick. How is balance and powersaving better than perf? Both > > have much more jobs per minute than perf; is that because we do pack > > much more tasks per cpu with balance and powersaving? > > Maybe it is due to the lazy balancing on balance/powersaving. You can > check the CS times in /proc/pid/status.
Well, it's not wakeup path, limiting entry frequency per waker did zip squat nada to any policy throughput.
-Mike
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