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

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Date:   Fri, 7 Sep 2018 08:58:36 -0700
From:   Suren Baghdasaryan <surenb@...gle.com>
To:     Johannes Weiner <hannes@...xchg.org>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Tejun Heo <tj@...nel.org>, 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 <linux-mm@...ck.org>,
        cgroups@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
        kernel-team@...com
Subject: Re: [PATCH 0/9] psi: pressure stall information for CPU, memory, and
 IO v4

Thanks for the new patchset! Backported to 4.9 and retested on ARMv8 8
code system running Android. Signals behave as expected reacting to
memory pressure, no jumps in "total" counters that would indicate an
overflow/underflow issues. Nicely done!

Tested-by: Suren Baghdasaryan <surenb@...gle.com>

On Fri, Sep 7, 2018 at 8:09 AM, Johannes Weiner <hannes@...xchg.org> wrote:
> On Fri, Sep 07, 2018 at 01:04:07PM +0200, Peter Zijlstra wrote:
>> So yeah, grudingly acked. Did you want me to pick this up through the
>> scheduler tree since most of this lives there?
>
> Thanks for the ack.
>
> As for routing it, I'll leave that decision to you and Andrew. It
> touches stuff all over, so it could result in quite a few conflicts
> between trees (although I don't expect any of them to be non-trivial).