linux-kernel - Re: [RFC PATCH] sched: Enable root level cgroup bandwidth control

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Message-ID: <20220518102140.GF10117@worktop.programming.kicks-ass.net>
Date:   Wed, 18 May 2022 12:21:40 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Fam Zheng <fam.zheng@...edance.com>
Cc:     linux-kernel@...r.kernel.org, Steven Rostedt <rostedt@...dmis.org>,
        Ben Segall <bsegall@...gle.com>,
        Daniel Bristot de Oliveira <bristot@...hat.com>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        zhouchengming@...edance.com,
        Vincent Guittot <vincent.guittot@...aro.org>, fam@...hon.net,
        Mel Gorman <mgorman@...e.de>, Ingo Molnar <mingo@...hat.com>,
        songmuchun@...edance.com, Juri Lelli <juri.lelli@...hat.com>
Subject: Re: [RFC PATCH] sched: Enable root level cgroup bandwidth control

On Wed, May 18, 2022 at 11:08:41AM +0100, Fam Zheng wrote:
> In the data center there sometimes comes a need to throttle down a
> server, 

Why?