linux-kernel - Re: [PATCH 09/10] psi: cgroup support

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Date:   Thu, 12 Jul 2018 13:08:21 -0700
From:   Tejun Heo <tj@...nel.org>
To:     Johannes Weiner <hannes@...xchg.org>
Cc:     Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Vinayak Menon <vinmenon@...eaurora.org>,
        Christopher Lameter <cl@...ux.com>,
        Mike Galbraith <efault@....de>,
        Shakeel Butt <shakeelb@...gle.com>, linux-mm@...ck.org,
        cgroups@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-team@...com
Subject: Re: [PATCH 09/10] psi: cgroup support

On Thu, Jul 12, 2018 at 01:29:41PM -0400, Johannes Weiner wrote:
> On a system that executes multiple cgrouped jobs and independent
> workloads, we don't just care about the health of the overall system,
> but also that of individual jobs, so that we can ensure individual job
> health, fairness between jobs, or prioritize some jobs over others.
> 
> This patch implements pressure stall tracking for cgroups. In kernels
> with CONFIG_PSI=y, cgroup2 groups will have cpu.pressure,
> memory.pressure, and io.pressure files that track aggregate pressure
> stall times for only the tasks inside the cgroup.
> 
> Signed-off-by: Johannes Weiner <hannes@...xchg.org>

Acked-by: Tejun Heo <tj@...nel.org>

Please feel free to route with the rest of the patchset.

Thanks.

-- 
tejun