From: Peter Zijlstra <peterz@infradead.org>
To: Vincent Guittot <vincent.guittot@linaro.org>
Cc: linux-kernel@vger.kernel.org, mingo@redhat.com,
quentin.perret@arm.com, dietmar.eggemann@arm.com,
Morten.Rasmussen@arm.com, pauld@redhat.com
Subject: Re: [PATCH 3/5] sched/fair: rework load_balance
Date: Fri, 19 Jul 2019 15:06:24 +0200 [thread overview]
Message-ID: <20190719130624.GK3419@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <1563523105-24673-4-git-send-email-vincent.guittot@linaro.org>
On Fri, Jul 19, 2019 at 09:58:23AM +0200, Vincent Guittot wrote:
> @@ -7887,7 +7908,7 @@ static inline int sg_imbalanced(struct sched_group *group)
> static inline bool
> group_has_capacity(struct lb_env *env, struct sg_lb_stats *sgs)
> {
> - if (sgs->sum_h_nr_running < sgs->group_weight)
> + if (sgs->sum_nr_running < sgs->group_weight)
> return true;
>
> if ((sgs->group_capacity * 100) >
> @@ -7908,7 +7929,7 @@ group_has_capacity(struct lb_env *env, struct sg_lb_stats *sgs)
> static inline bool
> group_is_overloaded(struct lb_env *env, struct sg_lb_stats *sgs)
> {
> - if (sgs->sum_h_nr_running <= sgs->group_weight)
> + if (sgs->sum_nr_running <= sgs->group_weight)
> return false;
>
> if ((sgs->group_capacity * 100) <
I suspect this is a change you can pull out into a separate patch after
the big change. Yes it makes sense to account the other class' task
presence, but I don't think it is strictly required to be in this patch.
next prev parent reply other threads:[~2019-07-19 13:06 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-19 7:58 [PATCH 0/5] sched/fair: rework the CFS load balance Vincent Guittot
2019-07-19 7:58 ` [PATCH 1/5] sched/fair: clean up asym packing Vincent Guittot
2019-07-19 7:58 ` [PATCH 2/5] sched/fair: rename sum_nr_running to sum_h_nr_running Vincent Guittot
2019-07-19 12:51 ` Peter Zijlstra
2019-07-19 13:44 ` Vincent Guittot
2019-07-26 2:17 ` Srikar Dronamraju
2019-07-26 8:41 ` Vincent Guittot
2019-07-19 7:58 ` [PATCH 3/5] sched/fair: rework load_balance Vincent Guittot
2019-07-19 12:52 ` Peter Zijlstra
2019-07-19 13:46 ` Vincent Guittot
2019-07-19 12:54 ` Peter Zijlstra
2019-07-19 14:02 ` Vincent Guittot
2019-07-20 11:31 ` Peter Zijlstra
2019-07-19 13:06 ` Peter Zijlstra [this message]
2019-07-19 13:57 ` Vincent Guittot
2019-07-19 13:12 ` Peter Zijlstra
2019-07-19 14:13 ` Vincent Guittot
2019-07-19 13:22 ` Peter Zijlstra
2019-07-19 13:55 ` Vincent Guittot
2019-07-25 17:17 ` Valentin Schneider
2019-07-26 9:01 ` Vincent Guittot
2019-07-26 10:41 ` Valentin Schneider
2019-07-26 12:30 ` Vincent Guittot
2019-07-26 14:01 ` Valentin Schneider
2019-07-26 14:47 ` Vincent Guittot
2019-07-29 14:28 ` Valentin Schneider
2019-07-26 13:58 ` Srikar Dronamraju
2019-07-26 14:09 ` Valentin Schneider
2019-07-26 14:42 ` Vincent Guittot
2019-07-31 13:43 ` Srikar Dronamraju
2019-07-31 15:37 ` Vincent Guittot
2019-07-19 7:58 ` [PATCH 4/5] sched/fair: use load instead of runnable load Vincent Guittot
2019-07-19 7:58 ` [PATCH 5/5] sched/fair: evenly spread tasks when not overloaded Vincent Guittot
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