linux-kernel - Re: [PATCH] mm: memcontrol: asynchronous reclaim for memory.high

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Date:   Thu, 20 Feb 2020 14:55:35 -0500
From:   Daniel Jordan <daniel.m.jordan@...cle.com>
To:     Tejun Heo <tj@...nel.org>
Cc:     Daniel Jordan <daniel.m.jordan@...cle.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Michal Hocko <mhocko@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Roman Gushchin <guro@...com>, linux-mm@...ck.org,
        cgroups@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-team@...com, Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH] mm: memcontrol: asynchronous reclaim for memory.high

On Thu, Feb 20, 2020 at 01:45:45PM -0500, Tejun Heo wrote:
> The setup cost can be lazy optimized but it'd still have to bounce the
> tiny pieces of work to different threads instead of processing them in
> one fell swoop from the same context, which most likely is gonna be
> untenably expensive.

I see, your last mail is clearer now.  If it's easy to do, a pointer to where
this happens would help so we're on the same page.

thanks,
Daniel