linux-kernel - Re: [PATCH v4 0/2] Fix and extend cpu.stat

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Message-ID: <puq53yk7guef3itr4d2uq5ka2m6cdbdflzzdumuvs2giyefwns@2e5ynejmu5ht>
Date: Fri, 21 Feb 2025 16:41:15 +0100
From: Michal Koutný <mkoutny@...e.com>
To: Abel Wu <wuyun.abel@...edance.com>
Cc: Johannes Weiner <hannes@...xchg.org>, Tejun Heo <tj@...nel.org>, 
	Ingo Molnar <mingo@...hat.com>, Peter Zijlstra <peterz@...radead.org>, 
	Juri Lelli <juri.lelli@...hat.com>, Vincent Guittot <vincent.guittot@...aro.org>, 
	Dietmar Eggemann <dietmar.eggemann@....com>, Steven Rostedt <rostedt@...dmis.org>, 
	Ben Segall <bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>, 
	Valentin Schneider <vschneid@...hat.com>, Yury Norov <yury.norov@...il.com>, 
	Andrew Morton <akpm@...ux-foundation.org>, Thomas Gleixner <tglx@...utronix.de>, 
	Bitao Hu <yaoma@...ux.alibaba.com>, Chen Ridong <chenridong@...wei.com>, 
	"open list:CONTROL GROUP (CGROUP)" <cgroups@...r.kernel.org>, open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 0/2] Fix and extend cpu.stat

On Sun, Feb 09, 2025 at 02:13:10PM +0800, Abel Wu <wuyun.abel@...edance.com> wrote:
> v4:
>  - Fixed a Kconfig dependency issue. (0day robot)
> v3:
>  - Dropped the cleanup patch. (Tejun)
>  - Modified 2nd patch's commit log.

But the modification isn't the usage examples that Johannes asked about?

Also as I'm unsure about some plain PSI values (posted to v2). Maybe
it'd be good if you could accompany the Σrun_delay with some examples
showing what different values tell about workload.

Thanks,
Michal

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