Messages in this thread | | | Subject | Re: [RFC] sched: The removal of idle_balance() | From | Mike Galbraith <> | Date | Sun, 17 Feb 2013 07:26:19 +0100 |
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On Fri, 2013-02-15 at 01:13 -0500, Steven Rostedt wrote: > I've been working on cleaning up the scheduler a little and I moved the > call to idle_balance() from directly in the scheduler proper into the > idle class. Benchmarks (well hackbench) improved slightly as I did this. > I was adding some more tweaks and running perf stat on the results when > I made a mistake and notice a drastic change. > > My runs looked something like this on my i7 4 core 4 hyperthreads: >
> 293,801,912,874 cycles # 1.470 GHz ( +- 4.20% ) [100.00%]
> 215,927,081,108 cycles # 2.198 GHz ( +- 5.48% ) [100.00%]
Hm. Maybe set governor to performance?
-Mike
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