| Subject | Re: [patch 00/16] CFS Bandwidth Control v7 | From | Peter Zijlstra <> | Date | Thu, 23 Jun 2011 14:06:56 +0200 |
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On Wed, 2011-06-22 at 19:05 +0900, Hidetoshi Seto wrote: > I'll continue my test/benchmark on this v7 for a while. > Though I believe no more bug is there, I'll let you know if there is > something.
Would that testing include performance of a kernel without these patches vs one with these patches in a configuration where the new feature is compiled in but not used?
It does add a number of if (!cfs_rq->runtime_enabled) return branches all over the place, some possibly inside a function call (depending on what the auto-inliner does). So while the impact should be minimal, it would be very good to test it is indeed so.
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