| Subject | Re: [PATCH] sched: wake-affine throttle | From | Peter Zijlstra <> | Date | Wed, 10 Apr 2013 10:51:13 +0200 |
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On Wed, 2013-04-10 at 11:30 +0800, Michael Wang wrote: > | 15 GB | 32 | 35918 | | 37632 | +4.77% | 47923 | +33.42% | > 52241 | +45.45%
So I don't get this... is wake_affine() once every milisecond _that_ expensive?
Seeing we get a 45%!! improvement out of once every 100ms that would mean we're like spending 1/3rd of our time in wake_affine()? that's preposterous. So what's happening?
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