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From: Mel Gorman <mgorman@suse.de>
To: Vincent Guittot <vincent.guittot@linaro.org>
Cc: mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com,
	dietmar.eggemann@arm.com, rostedt@goodmis.org,
	bsegall@google.com, bristot@redhat.com,
	linux-kernel@vger.kernel.org, tim.c.chen@linux.intel.com
Subject: Re: [PATCH v3 1/5] sched/fair: Account update_blocked_averages in newidle_balance cost
Date: Thu, 21 Oct 2021 10:43:11 +0100	[thread overview]
Message-ID: <20211021094311.GB3891@suse.de> (raw)
In-Reply-To: <20211019123537.17146-2-vincent.guittot@linaro.org>

On Tue, Oct 19, 2021 at 02:35:33PM +0200, Vincent Guittot wrote:
> The time spent to update the blocked load can be significant depending of
> the complexity fo the cgroup hierarchy. Take this time into account in
> the cost of the 1st load balance of a newly idle cpu.
> 
> Also reduce the number of call to sched_clock_cpu() and track more actual
> work.
> 
> Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>

Acked-by: Mel Gorman <mgorman@suse.de>

-- 
Mel Gorman
SUSE Labs

  reply	other threads:[~2021-10-21  9:43 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-19 12:35 [PATCH v3 0/5] Improve newidle lb cost tracking and early abort Vincent Guittot
2021-10-19 12:35 ` [PATCH v3 1/5] sched/fair: Account update_blocked_averages in newidle_balance cost Vincent Guittot
2021-10-21  9:43   ` Mel Gorman [this message]
2021-10-31 10:16   ` [tip: sched/core] " tip-bot2 for Vincent Guittot
2021-10-19 12:35 ` [PATCH v3 2/5] sched/fair: Skip update_blocked_averages if we are defering load balance Vincent Guittot
2021-10-21  9:44   ` Mel Gorman
2021-10-21 12:45     ` Vincent Guittot
2021-10-31 10:16   ` [tip: sched/core] " tip-bot2 for Vincent Guittot
2021-10-19 12:35 ` [PATCH 3/5] sched/fair: Wait before decaying max_newidle_lb_cost Vincent Guittot
2021-10-21  9:45   ` Mel Gorman
2021-10-29 10:01   ` Dietmar Eggemann
2021-10-29 12:19     ` Vincent Guittot
2021-10-31 10:16   ` [tip: sched/core] " tip-bot2 for Vincent Guittot
2021-10-19 12:35 ` [PATCH v3 4/5] sched/fair: Remove sysctl_sched_migration_cost condition Vincent Guittot
2021-10-21  9:46   ` Mel Gorman
2021-10-29 10:01   ` Dietmar Eggemann
2021-10-29 12:30     ` Vincent Guittot
2021-10-31 10:16   ` [tip: sched/core] " tip-bot2 for Vincent Guittot
2021-10-19 12:35 ` [PATCH v3 5/5] sched/fair: cleanup newidle_balance Vincent Guittot
2021-10-21  9:46   ` Mel Gorman
2021-10-31 10:16   ` [tip: sched/core] sched/fair: Cleanup newidle_balance tip-bot2 for Vincent Guittot
2021-10-21  9:52 ` [PATCH v3 0/5] Improve newidle lb cost tracking and early abort Mel Gorman
2021-10-21 12:42   ` Vincent Guittot
2021-10-26 17:25 ` Tim Chen
2021-10-27  8:49   ` Vincent Guittot
2021-10-27 20:53     ` Tim Chen
2021-10-28 12:15       ` Vincent Guittot
2021-10-28 21:36         ` Tim Chen
2021-10-29 17:00     ` Tim Chen
2021-10-31 10:18       ` Vincent Guittot
2021-10-28 23:25 ` Joel Fernandes
2021-10-29  7:49   ` Vincent Guittot
2021-10-29 19:37     ` Joel Fernandes
2021-10-29 10:01 ` Dietmar Eggemann

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