From: Michal Hocko <mhocko@kernel.org>
To: Rik van Riel <riel@surriel.com>
Cc: Suren Baghdasaryan <surenb@google.com>,
akpm@linux-foundation.org, dancol@google.com, jannh@google.com,
minchan@kernel.org, penguin-kernel@I-love.SAKURA.ne.jp,
kernel-team@android.com, rientjes@google.com,
linux-kernel@vger.kernel.org, willy@infradead.org,
linux-mm@kvack.org, hannes@cmpxchg.org, shakeelb@google.com,
jrdr.linux@gmail.com, yuzhoujian@didichuxing.com,
joel@joelfernandes.org, timmurray@google.com,
lsf-pc@lists.linux-foundation.org, guro@fb.com,
christian@brauner.io, ebiederm@xmission.com
Subject: Re: [Lsf-pc] [RFC 0/2] opportunistic memory reclaim of a killed process
Date: Thu, 11 Apr 2019 14:16:33 +0200 [thread overview]
Message-ID: <20190411121633.GV10383@dhcp22.suse.cz> (raw)
In-Reply-To: <e1fc2c84f5ef2e1408f6fee7228a52a458990b31.camel@surriel.com>
On Thu 11-04-19 07:51:21, Rik van Riel wrote:
> On Wed, 2019-04-10 at 18:43 -0700, Suren Baghdasaryan via Lsf-pc wrote:
> > The time to kill a process and free its memory can be critical when
> > the
> > killing was done to prevent memory shortages affecting system
> > responsiveness.
>
> The OOM killer is fickle, and often takes a fairly
> long time to trigger. Speeding up what happens after
> that seems like the wrong thing to optimize.
>
> Have you considered using something like oomd to
> proactively kill tasks when memory gets low, so
> you do not have to wait for an OOM kill?
AFAIU, this is the point here. They probably have a user space OOM
killer implementation and want to achieve killing to be as swift as
possible.
--
Michal Hocko
SUSE Labs
next prev parent reply other threads:[~2019-04-11 12:16 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-11 1:43 [RFC 0/2] opportunistic memory reclaim of a killed process Suren Baghdasaryan
2019-04-11 1:43 ` [RFC 1/2] mm: oom: expose expedite_reclaim to use oom_reaper outside of oom_kill.c Suren Baghdasaryan
2019-04-25 21:12 ` Tetsuo Handa
2019-04-25 21:56 ` Suren Baghdasaryan
2019-04-11 1:43 ` [RFC 2/2] signal: extend pidfd_send_signal() to allow expedited process killing Suren Baghdasaryan
2019-04-11 10:30 ` Christian Brauner
2019-04-11 10:34 ` Christian Brauner
2019-04-11 15:18 ` Suren Baghdasaryan
2019-04-11 15:23 ` Suren Baghdasaryan
2019-04-11 16:25 ` Daniel Colascione
2019-04-11 15:33 ` Matthew Wilcox
2019-04-11 17:05 ` Johannes Weiner
2019-04-11 17:09 ` Suren Baghdasaryan
2019-04-11 17:33 ` Daniel Colascione
2019-04-11 17:36 ` Matthew Wilcox
2019-04-11 17:47 ` Daniel Colascione
2019-04-12 6:49 ` Michal Hocko
2019-04-12 14:15 ` Suren Baghdasaryan
2019-04-12 14:20 ` Daniel Colascione
2019-04-12 21:03 ` Matthew Wilcox
2019-04-11 17:52 ` Suren Baghdasaryan
2019-04-11 21:45 ` Roman Gushchin
2019-04-11 21:59 ` Suren Baghdasaryan
2019-04-12 6:53 ` Michal Hocko
2019-04-12 14:10 ` Suren Baghdasaryan
2019-04-12 14:14 ` Daniel Colascione
2019-04-12 15:30 ` Daniel Colascione
2019-04-25 16:09 ` Suren Baghdasaryan
2019-04-11 10:51 ` [RFC 0/2] opportunistic memory reclaim of a killed process Michal Hocko
2019-04-11 16:18 ` Joel Fernandes
2019-04-11 18:12 ` Michal Hocko
2019-04-11 19:14 ` Joel Fernandes
2019-04-11 20:11 ` Michal Hocko
2019-04-11 21:11 ` Joel Fernandes
2019-04-11 16:20 ` Sandeep Patil
2019-04-11 16:47 ` Suren Baghdasaryan
2019-04-11 18:19 ` Michal Hocko
2019-04-11 19:56 ` Suren Baghdasaryan
2019-04-11 20:17 ` Michal Hocko
2019-04-11 17:19 ` Johannes Weiner
2019-04-11 11:51 ` [Lsf-pc] " Rik van Riel
2019-04-11 12:16 ` Michal Hocko [this message]
2019-04-11 16:54 ` Suren Baghdasaryan
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