From: Tejun Heo <tj@kernel.org>
To: Michal Hocko <mhocko@kernel.org>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>,
Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mgorman@suse.de>,
linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] mm, memory_hotplug: do not back off draining pcp free pages from kworker context
Date: Tue, 19 Sep 2017 11:57:45 -0700 [thread overview]
Message-ID: <20170919185745.GB828415@devbig577.frc2.facebook.com> (raw)
In-Reply-To: <20170919094521.2vqcnqrx3q2h2axb@dhcp22.suse.cz>
Hello,
On Tue, Sep 19, 2017 at 11:45:21AM +0200, Michal Hocko wrote:
> > So, this shouldn't be an issue. This may get affected by direct
> > reclaim frenzy but it's only a small piece of the whole symptom and we
> > gotta fix that at the source.
>
> OK, so there shouldn't be any issue with the patch, right?
idk, it'll make the code path more susceptible to direct reclaim
starvations, so it's difficult to claim that there won't be *any*
problems; however, given the extent of the starvation problem, this
likely won't add any noticeable issues.
Thanks.
--
tejun
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next prev parent reply other threads:[~2017-09-19 18:57 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-28 9:33 Michal Hocko
2017-08-28 22:33 ` Andrew Morton
2017-08-29 11:20 ` Tetsuo Handa
2017-08-29 11:28 ` Michal Hocko
2017-08-31 5:33 ` Michal Hocko
2017-09-19 3:38 ` Tejun Heo
2017-09-19 9:45 ` Michal Hocko
2017-09-19 18:57 ` Tejun Heo [this message]
2017-08-29 13:53 ` Michal Hocko
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