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

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Message-Id: <20250123174713.25570-1-wuyun.abel@bytedance.com>
Date: Fri, 24 Jan 2025 01:47:00 +0800
From: Abel Wu <wuyun.abel@...edance.com>
To: Tejun Heo <tj@...nel.org>,
	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>,
	Bitao Hu <yaoma@...ux.alibaba.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Yury Norov <yury.norov@...il.com>,
	Abel Wu <wuyun.abel@...edance.com>,
	Chen Ridong <chenridong@...wei.com>
Cc: cgroups@...r.kernel.org (open list:CONTROL GROUP (CGROUP)),
	linux-doc@...r.kernel.org (open list:DOCUMENTATION),
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH 0/3] Fix and cleanup and extend cpu.stat

Patch 1: fixes an issue that forceidle time can be inconsistant with
other cputimes.

Patch 2: cleans up the #ifdef mess in cpu.stat.

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

Abel Wu (3):
  cgroup/rstat: Fix forceidle time in cpu.stat
  cgroup/rstat: Cleanup cpu.stat once for all
  cgroup/rstat: Add run_delay accounting for cgroups

 Documentation/admin-guide/cgroup-v2.rst |  1 +
 include/linux/cgroup-defs.h             |  3 +
 include/linux/kernel_stat.h             | 14 +++++
 kernel/cgroup/rstat.c                   | 74 +++++++++++++++----------
 kernel/sched/cputime.c                  | 12 ++++
 kernel/sched/stats.h                    |  2 +
 6 files changed, 78 insertions(+), 28 deletions(-)

-- 
2.37.3