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From: Lukasz Luba <lukasz.luba@arm.com>
To: Qais Yousef <qyousef@layalina.io>
Cc: linux-kernel@vger.kernel.org,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Viresh Kumar <viresh.kumar@linaro.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	linux-pm@vger.kernel.org, Ingo Molnar <mingo@kernel.org>,
	Wei Wang <wvw@google.com>, Rick Yiu <rickyiu@google.com>,
	Chung-Kai Mei <chungkai@google.com>,
	Hongyan Xia <hongyan.xia2@arm.com>,
	Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH 1/4] sched/fair: Be less aggressive in calling cpufreq_update_util()
Date: Fri, 8 Dec 2023 10:05:38 +0000	[thread overview]
Message-ID: <bc525124-da79-45af-a99b-ec4616b3fa6b@arm.com> (raw)
In-Reply-To: <20231208015242.385103-2-qyousef@layalina.io>

Hi Qais,

On 12/8/23 01:52, Qais Yousef wrote:

[snip]

> @@ -6704,14 +6677,6 @@ enqueue_task_fair(struct rq *rq, struct task_struct *p, int flags)
>   	 */
>   	util_est_enqueue(&rq->cfs, p);
>   
> -	/*
> -	 * If in_iowait is set, the code below may not trigger any cpufreq
> -	 * utilization updates, so do it here explicitly with the IOWAIT flag
> -	 * passed.
> -	 */
> -	if (p->in_iowait)
> -		cpufreq_update_util(rq, SCHED_CPUFREQ_IOWAIT);
> -

Why this io wait boost is considered as the $subject says 'aggressive'
calling?

Regards,
Lukasz

  reply	other threads:[~2023-12-08 10:04 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-08  1:52 [PATCH 0/4] sched: cpufreq: Remove uclamp max-aggregation Qais Yousef
2023-12-08  1:52 ` [PATCH 1/4] sched/fair: Be less aggressive in calling cpufreq_update_util() Qais Yousef
2023-12-08 10:05   ` Lukasz Luba [this message]
2023-12-10 20:51     ` Qais Yousef
2023-12-11  7:56       ` Lukasz Luba
2023-12-12 12:10         ` Qais Yousef
2023-12-14  8:19           ` Lukasz Luba
2023-12-11 18:47   ` Christian Loehle
2023-12-12 12:34     ` Qais Yousef
2023-12-12 13:09       ` Christian Loehle
2023-12-12 13:29         ` Qais Yousef
2023-12-12 10:46   ` Dietmar Eggemann
2023-12-12 12:35     ` Qais Yousef
2023-12-12 18:22       ` Hongyan Xia
2023-12-12 10:47   ` Hongyan Xia
2023-12-12 11:06   ` Vincent Guittot
2023-12-12 12:40     ` Qais Yousef
2023-12-29  0:25       ` Qais Yousef
2024-01-03 13:41         ` Vincent Guittot
2024-01-04 19:40           ` Qais Yousef
2023-12-18  8:51   ` Dietmar Eggemann
2023-12-17 21:44     ` Qais Yousef
2023-12-08  1:52 ` [PATCH 2/4] sched/uclamp: Remove rq max aggregation Qais Yousef
2023-12-11  0:08   ` Qais Yousef
2023-12-08  1:52 ` [PATCH 3/4] sched/schedutil: Ignore update requests for short running tasks Qais Yousef
2023-12-08 10:42   ` Hongyan Xia
2023-12-10 22:22     ` Qais Yousef
2023-12-11 11:15       ` Hongyan Xia
2023-12-12 12:23         ` Qais Yousef
2023-12-08  1:52 ` [PATCH 4/4] sched/documentation: Remove reference to max aggregation Qais Yousef
2023-12-18  8:19 ` [PATCH 0/4] sched: cpufreq: Remove uclamp max-aggregation Dietmar Eggemann
2023-12-17 21:23   ` Qais Yousef

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