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Date:   Sat, 29 Jul 2017 05:21:15 +0200
From:   Mike Galbraith <efault@....de>
To:     Johannes Weiner <hannes@...xchg.org>,
        Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Rik van Riel <riel@...hat.com>, Mel Gorman <mgorman@...e.de>
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        kernel-team@...com
Subject: Re: [PATCH 0/3] memdelay: memory health metric for systems and
 workloads

On Sat, 2017-07-29 at 04:48 +0200, Mike Galbraith wrote:
> On Thu, 2017-07-27 at 11:30 -0400, Johannes Weiner wrote:
> > 
> > Structure
> > 
> > The first patch cleans up the different loadavg callsites and macros
> > as the memdelay averages are going to be tracked using these.
> > 
> > The second patch adds a distinction between page cache transitions
> > (inactive list refaults) and page cache thrashing (active list
> > refaults), since only the latter are unproductive refaults.
> > 
> > The third patch finally adds the memdelay accounting and interface:
> > its scheduler side identifies productive and unproductive task states,
> > and the VM side aggregates them into system and cgroup domain states
> > and calculates moving averages of the time spent in each state.
> 
> What tree is this against?  ttwu asm delta says "measure me".

(mm/master.. gee)

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