linux-kernel - Re: [PATCH v2 0/3] Fix and cleanup and extend cpu.stat

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Message-ID: <Z6J8wbuXgiz_ly-q@slm.duckdns.org>
Date: Tue, 4 Feb 2025 10:46:57 -1000
From: Tejun Heo <tj@...nel.org>
To: Abel Wu <wuyun.abel@...edance.com>
Cc: Johannes Weiner <hannes@...xchg.org>,
	Michal Koutný <mkoutny@...e.com>,
	Jonathan Corbet <corbet@....net>, 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>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Yury Norov <yury.norov@...il.com>,
	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:DOCUMENTATION" <linux-doc@...r.kernel.org>,
	open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 0/3] Fix and cleanup and extend cpu.stat

On Mon, Feb 03, 2025 at 04:11:27PM +0800, Abel Wu wrote:
> Ping :)
> 
> On 1/25/25 1:25 PM, Abel Wu Wrote:
> > Patch 1: fixes an issue that forceidle time can be inconsistant with
> > other cputimes.
> > 
> > Patch 2: cleans up the #ifdef mess in cpu.stat.

I wasn't sure whether the new code was materially better than the existing.
Can we try without this patch?

> > Patch 3: extend run_delay accounting to cgroup to show how severely
> > a cgroup is stalled.

I'm not necessarily against adding this. Johannes, what do you think?

Thanks.

-- 
tejun