From: Chris Down <chris-6Bi1550iOqEnzZ6mRAm98g@public.gmane.org>
To: Michal Hocko <mhocko-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Andrew Morton
<akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
Johannes Weiner <hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>,
Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org,
cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
kernel-team-b10kYP2dOMg@public.gmane.org
Subject: Re: [PATCH] mm, memcg: reclaim more aggressively before high allocator throttling
Date: Thu, 21 May 2020 13:24:38 +0100 [thread overview]
Message-ID: <20200521122438.GC990580@chrisdown.name> (raw)
In-Reply-To: <20200521122327.GB990580-6Bi1550iOqEnzZ6mRAm98g@public.gmane.org>
Chris Down writes:
>A cgroup is a unit and breaking it down into "reclaim fairness" for
>individual tasks like this seems suspect to me. For example, if one
>task in a cgroup is leaking unreclaimable memory like crazy, everyone
>in that cgroup is going to be penalised by allocator throttling as a
>result, even if they aren't "responsible" for that reclaim.
s/for that reclaim/for that overage/
WARNING: multiple messages have this Message-ID (diff)
From: Chris Down <chris@chrisdown.name>
To: Michal Hocko <mhocko@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Johannes Weiner <hannes@cmpxchg.org>, Tejun Heo <tj@kernel.org>,
linux-mm@kvack.org, cgroups@vger.kernel.org,
linux-kernel@vger.kernel.org, kernel-team@fb.com
Subject: Re: [PATCH] mm, memcg: reclaim more aggressively before high allocator throttling
Date: Thu, 21 May 2020 13:24:38 +0100 [thread overview]
Message-ID: <20200521122438.GC990580@chrisdown.name> (raw)
In-Reply-To: <20200521122327.GB990580@chrisdown.name>
Chris Down writes:
>A cgroup is a unit and breaking it down into "reclaim fairness" for
>individual tasks like this seems suspect to me. For example, if one
>task in a cgroup is leaking unreclaimable memory like crazy, everyone
>in that cgroup is going to be penalised by allocator throttling as a
>result, even if they aren't "responsible" for that reclaim.
s/for that reclaim/for that overage/
next prev parent reply other threads:[~2020-05-21 12:24 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-20 14:37 [PATCH] mm, memcg: reclaim more aggressively before high allocator throttling Chris Down
2020-05-20 14:37 ` Chris Down
[not found] ` <20200520143712.GA749486-6Bi1550iOqEnzZ6mRAm98g@public.gmane.org>
2020-05-20 16:07 ` Michal Hocko
2020-05-20 16:07 ` Michal Hocko
2020-05-20 16:51 ` Johannes Weiner
2020-05-20 17:04 ` Michal Hocko
2020-05-20 17:51 ` Johannes Weiner
[not found] ` <20200520175135.GA793901-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
2020-05-21 7:32 ` Michal Hocko
2020-05-21 7:32 ` Michal Hocko
[not found] ` <20200521073245.GI6462-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2020-05-21 13:51 ` Johannes Weiner
2020-05-21 13:51 ` Johannes Weiner
2020-05-21 14:22 ` Johannes Weiner
[not found] ` <20200521135152.GA810429-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
2020-05-21 14:35 ` Michal Hocko
2020-05-21 14:35 ` Michal Hocko
[not found] ` <20200521143515.GU6462-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2020-05-21 15:02 ` Chris Down
2020-05-21 15:02 ` Chris Down
2020-05-21 16:38 ` Johannes Weiner
2020-05-21 16:38 ` Johannes Weiner
[not found] ` <20200521163833.GA813446-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
2020-05-21 17:37 ` Michal Hocko
2020-05-21 17:37 ` Michal Hocko
[not found] ` <20200521173701.GX6462-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2020-05-21 18:45 ` Johannes Weiner
2020-05-21 18:45 ` Johannes Weiner
[not found] ` <20200521184505.GA815980-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
2020-05-28 16:31 ` Michal Hocko
2020-05-28 16:31 ` Michal Hocko
[not found] ` <20200528163101.GJ27484-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2020-05-28 16:48 ` Chris Down
2020-05-28 16:48 ` Chris Down
[not found] ` <20200528164848.GB839178-6Bi1550iOqEnzZ6mRAm98g@public.gmane.org>
2020-05-29 7:31 ` Michal Hocko
2020-05-29 7:31 ` Michal Hocko
2020-05-29 10:08 ` Chris Down
[not found] ` <20200529100858.GA98458-6Bi1550iOqEnzZ6mRAm98g@public.gmane.org>
2020-05-29 10:14 ` Michal Hocko
2020-05-29 10:14 ` Michal Hocko
2020-05-28 20:11 ` Johannes Weiner
2020-05-28 20:11 ` Johannes Weiner
[not found] ` <20200520160756.GE6462-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2020-05-20 20:26 ` Chris Down
2020-05-20 20:26 ` Chris Down
[not found] ` <20200520202650.GB558281-6Bi1550iOqEnzZ6mRAm98g@public.gmane.org>
2020-05-21 7:19 ` Michal Hocko
2020-05-21 7:19 ` Michal Hocko
2020-05-21 11:27 ` Chris Down
[not found] ` <20200521112711.GA990580-6Bi1550iOqEnzZ6mRAm98g@public.gmane.org>
2020-05-21 12:04 ` Michal Hocko
2020-05-21 12:04 ` Michal Hocko
[not found] ` <20200521120455.GM6462-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2020-05-21 12:23 ` Chris Down
2020-05-21 12:23 ` Chris Down
[not found] ` <20200521122327.GB990580-6Bi1550iOqEnzZ6mRAm98g@public.gmane.org>
2020-05-21 12:24 ` Chris Down [this message]
2020-05-21 12:24 ` Chris Down
2020-05-21 12:37 ` Michal Hocko
2020-05-21 12:57 ` Chris Down
[not found] ` <20200521125759.GD990580-6Bi1550iOqEnzZ6mRAm98g@public.gmane.org>
2020-05-21 13:05 ` Chris Down
2020-05-21 13:05 ` Chris Down
[not found] ` <20200521130530.GE990580-6Bi1550iOqEnzZ6mRAm98g@public.gmane.org>
2020-05-21 13:28 ` Michal Hocko
2020-05-21 13:28 ` Michal Hocko
2020-05-21 13:21 ` Michal Hocko
2020-05-21 13:21 ` Michal Hocko
[not found] ` <20200521132120.GR6462-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2020-05-21 13:41 ` Chris Down
2020-05-21 13:41 ` Chris Down
[not found] ` <20200521133324.GF990580-6Bi1550iOqEnzZ6mRAm98g@public.gmane.org>
2020-05-21 13:58 ` Michal Hocko
2020-05-21 13:58 ` Michal Hocko
2020-05-21 14:22 ` Chris Down
2020-05-21 12:28 ` Michal Hocko
2020-05-21 12:28 ` Michal Hocko
2020-05-28 18:02 ` Shakeel Butt
[not found] ` <CALvZod7rSeAKXKq_V0SggZWn4aL8pYWJiej4NdRd8MmuwUzPEw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2020-05-28 19:48 ` Chris Down
2020-05-28 19:48 ` Chris Down
[not found] ` <20200528194831.GA2017-6Bi1550iOqEnzZ6mRAm98g@public.gmane.org>
2020-05-28 20:29 ` Johannes Weiner
2020-05-28 20:29 ` Johannes Weiner
[not found] ` <20200528202944.GA76514-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
2020-05-28 21:02 ` Shakeel Butt
2020-05-28 21:02 ` Shakeel Butt
2020-05-28 21:14 ` Chris Down
2020-05-28 21:14 ` Chris Down
2020-05-29 7:25 ` Michal Hocko
2020-05-29 7:25 ` Michal Hocko
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