linux-kernel - Re: [PATCH] psi: Expose pressure metrics on root cgroup

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Date:   Fri, 10 May 2019 14:23:58 -0400
From:   Johannes Weiner <hannes@...xchg.org>
To:     Dan Schatzberg <dschatzberg@...com>
Cc:     Tejun Heo <tj@...nel.org>, Li Zefan <lizefan@...wei.com>,
        Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org, cgroups@...r.kernel.org
Subject: Re: [PATCH] psi: Expose pressure metrics on root cgroup

On Fri, May 10, 2019 at 10:49:34AM -0700, Dan Schatzberg wrote:
> Pressure metrics are already recorded and exposed in procfs for the
> entire system, but any tool which monitors cgroup pressure has to
> special case the root cgroup to read from procfs. This patch exposes
> the already recorded pressure metrics on the root cgroup.
> 
> Signed-off-by: Dan Schatzberg <dschatzberg@...com>

Looks good to me, thanks Dan!

Acked-by: Johannes Weiner <hannes@...xchg.org>