Re: [PATCH] sched: Make schedstats a runtime tunable that is disabled by default v2

From: Mike Galbraith
Date: Wed Jan 27 2016 - 10:58:34 EST

On Wed, 2016-01-27 at 15:29 +0000, Mel Gorman wrote:
> Changelog since V1
> o Introduce schedstat_enabled and address Ingo's feedback
> o More schedstat-only paths eliminated, particularly ttwu_stat

As mentioned offline, with the somewhat lighter than distro config of
my box, the patch delivered ~4% on cross core pipe-test loop time, and
~2% for tbench throughput.