Messages in this thread | | | Date | Tue, 1 Dec 2020 12:03:00 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCH] sched/fair: Clear SMT siblings after determining the core is not idle |
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On Mon, Nov 30, 2020 at 03:47:01PM +0100, Vincent Guittot wrote: > On Mon, 30 Nov 2020 at 15:40, Mel Gorman <mgorman@techsingularity.net> wrote: > > > > The clearing of SMT siblings from the SIS mask before checking for an idle > > core is a small but unnecessary cost. Defer the clearing of the siblings > > until the scan moves to the next potential target. The cost of this was > > not measured as it is borderline noise but it should be self-evident. > > Good point > > > > > Signed-off-by: Mel Gorman <mgorman@techsingularity.net> > > Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Thanks!
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