Re: [RFC] sched: The removal of idle_balance()

[Mike Galbraith]

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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