linux-kernel - [PATCH v3 0/2] Fix and extend cpu.stat

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Message-Id: <20250207041012.89192-1-wuyun.abel@bytedance.com>
Date: Fri,  7 Feb 2025 12:09:59 +0800
From: Abel Wu <wuyun.abel@...edance.com>
To: Johannes Weiner <hannes@...xchg.org>,
	Tejun Heo <tj@...nel.org>,
	Michal Koutný <mkoutny@...e.com>,
	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>,
	Thomas Gleixner <tglx@...utronix.de>,
	Bitao Hu <yaoma@...ux.alibaba.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Abel Wu <wuyun.abel@...edance.com>,
	Yury Norov <yury.norov@...il.com>,
	Chen Ridong <chenridong@...wei.com>
Cc: cgroups@...r.kernel.org (open list:CONTROL GROUP (CGROUP)),
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v3 0/2] Fix and extend cpu.stat

Patch 1: fixes an issue that forceidle time can be inconsistant with
other cputimes.
Patch 2: extend run_delay accounting to cgroup to show how severely
a cgroup is stalled.

v3:
 - Drop the cleanup patch. (Tejun)
 - Modified 2nd patch's commit log.
v2:
 - Fix internal function naming. (Michal Koutny)


Abel Wu (2):
  cgroup/rstat: Fix forceidle time in cpu.stat
  cgroup/rstat: Add run_delay accounting for cgroups

 include/linux/cgroup-defs.h |  3 +++
 include/linux/kernel_stat.h | 14 ++++++++++
 kernel/cgroup/rstat.c       | 54 ++++++++++++++++++++++++++-----------
 kernel/sched/cputime.c      | 12 +++++++++
 kernel/sched/stats.h        |  3 +++
 5 files changed, 70 insertions(+), 16 deletions(-)

-- 
2.37.3