linux-kernel - Re: [PATCH 0/9] psi: pressure stall information for CPU, memory, and IO v4

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Message-Id: <20181018190710.fcea1c5f9c3b0c15d37ee762@linux-foundation.org>
Date:   Thu, 18 Oct 2018 19:07:10 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Johannes Weiner <hannes@...xchg.org>
Cc:     Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Tejun Heo <tj@...nel.org>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Daniel Drake <drake@...lessm.com>,
        Vinayak Menon <vinmenon@...eaurora.org>,
        Christopher Lameter <cl@...ux.com>,
        Peter Enderborg <peter.enderborg@...y.com>,
        Shakeel Butt <shakeelb@...gle.com>,
        Mike Galbraith <efault@....de>, linux-mm@...ck.org,
        cgroups@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-team@...com
Subject: Re: [PATCH 0/9] psi: pressure stall information for CPU, memory,
 and IO v4

On Tue, 28 Aug 2018 13:22:49 -0400 Johannes Weiner <hannes@...xchg.org> wrote:

> This version 4 of the PSI series incorporates feedback from Peter and
> fixes two races in the lockless aggregator that Suren found in his
> testing and which caused the sample calculation to sometimes underflow
> and record bogusly large samples; details at the bottom of this email.

We've had very little in the way of review activity for the PSI
patchset.  According to the changelog tags, anyway.