| Date | Thu, 21 Oct 2021 10:44:12 +0100 | From | Mel Gorman <> | Subject | Re: [PATCH v3 2/5] sched/fair: Skip update_blocked_averages if we are defering load balance |
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On Tue, Oct 19, 2021 at 02:35:34PM +0200, Vincent Guittot wrote: > In newidle_balance(), the scheduler skips load balance to the new idle cpu > when the 1st sd of this_rq is: > > this_rq->avg_idle < sd->max_newidle_lb_cost > > Doing a costly call to update_blocked_averages() will not be useful and > simply adds overhead when this condition is true. > > Check the condition early in newidle_balance() to skip > update_blocked_averages() when possible. > > Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org> > Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
The Signed-off-by seems to be in the wrong order but otherwise
Acked-by: Mel Gorman <mgorman@suse.de>
-- Mel Gorman SUSE Labs
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