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Date: Thu, 27 Jul 2017 13:43:25 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: Johannes Weiner <hannes@cmpxchg.org>
Cc: Ingo Molnar <mingo@redhat.com>, Peter Zijlstra <peterz@infradead.org>,
        Rik van Riel <riel@redhat.com>, Mel Gorman <mgorman@suse.de>,
        linux-mm@kvack.org, linux-kernel@vger.kernel.org, kernel-team@fb.com
Subject: Re: [PATCH 0/3] memdelay: memory health metric for systems and
 workloads
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On Thu, 27 Jul 2017 11:30:07 -0400 Johannes Weiner <hannes@cmpxchg.org> wrote:

> This patch series implements a fine-grained metric for memory
> health.

I assume some Documentation/ is forthcoming.

Consuming another page flag hurts.  What's our current status there?

I'd be interested in seeing some usage examples.  Perhaps anecdotes
where "we observed problem X so we used memdelay in manner Y and saw
result Z".

I assume that some userspace code which utilizes this interface exists
already.  What's the long-term plan here?  systemd changes?