linux-kernel - Re: [PATCH v3 0/5] Defer throttle when task exits to user

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Message-ID: <20250715072218.GA304@bytedance>
Date: Tue, 15 Jul 2025 15:22:18 +0800
From: Aaron Lu <ziqianlu@...edance.com>
To: Valentin Schneider <vschneid@...hat.com>,
	Ben Segall <bsegall@...gle.com>,
	K Prateek Nayak <kprateek.nayak@....com>,
	Peter Zijlstra <peterz@...radead.org>,
	Chengming Zhou <chengming.zhou@...ux.dev>,
	Josh Don <joshdon@...gle.com>, Ingo Molnar <mingo@...hat.com>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Xi Wang <xii@...gle.com>
Cc: linux-kernel@...r.kernel.org, Juri Lelli <juri.lelli@...hat.com>,
	Dietmar Eggemann <dietmar.eggemann@....com>,
	Steven Rostedt <rostedt@...dmis.org>, Mel Gorman <mgorman@...e.de>,
	Chuyi Zhou <zhouchuyi@...edance.com>,
	Jan Kiszka <jan.kiszka@...mens.com>,
	Florian Bezdeka <florian.bezdeka@...mens.com>,
	Songtang Liu <liusongtang@...edance.com>
Subject: Re: [PATCH v3 0/5] Defer throttle when task exits to user

On Tue, Jul 15, 2025 at 03:16:53PM +0800, Aaron Lu wrote:
> - A stress test that creates a lot of pressure on fork/exit path and
>   cgroup_threadgroup_rwsem. Without this series, the test will cause
>   task hung in about 5 minutes and with this series, no problem found
>   after several hours. Songtang wrote this test script and I've used it
>   to verify the patches, thanks Songtang.

Test scripts attached.

Download attachment "cg.sh" of type "application/x-sh" (1072 bytes)

Download attachment "test.sh" of type "application/x-sh" (2136 bytes)