From: David Rientjes <rientjes@google.com>
To: Michal Hocko <mhocko@suse.cz>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Johannes Weiner <hannes@cmpxchg.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] doc: describe memcg swappiness more precisely memory.swappiness==0
Date: Mon, 15 Oct 2012 17:54:37 -0700 (PDT) [thread overview]
Message-ID: <alpine.DEB.2.00.1210151754220.31712@chino.kir.corp.google.com> (raw)
In-Reply-To: <20121015220725.GB11682@dhcp22.suse.cz>
On Tue, 16 Oct 2012, Michal Hocko wrote:
> And a follow up for memcg.swappiness documentation which is more
> specific about spwappiness==0 meaning.
> ---
> From 1bc3a94fea728107ed108edd42df464b908cd067 Mon Sep 17 00:00:00 2001
> From: Michal Hocko <mhocko@suse.cz>
> Date: Mon, 15 Oct 2012 11:43:56 +0200
> Subject: [PATCH] doc: describe memcg swappiness more precisely
>
> since fe35004f (mm: avoid swapping out with swappiness==0) memcg reclaim
> stopped swapping out anon pages completely when 0 value is used.
> Although this is somehow expected it hasn't been done for a really long
> time this way and so it is probably better to be explicit about the
> effect. Moreover global reclaim swapps out even when swappiness is 0
> to prevent from OOM killer.
>
> Signed-off-by: Michal Hocko <mhocko@suse.cz>
Acked-by: David Rientjes <rientjes@google.com>
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next prev parent reply other threads:[~2012-10-16 0:54 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-10 14:11 [RFC PATCH] memcg: oom: fix totalpages calculation for swappiness==0 Michal Hocko
2012-10-10 20:50 ` David Rientjes
2012-10-11 8:50 ` Michal Hocko
2012-10-11 8:57 ` [PATCH] memcg: oom: fix totalpages calculation for memory.swappiness==0 Michal Hocko
2012-10-11 9:13 ` Michal Hocko
2012-10-11 12:20 ` Johannes Weiner
2012-10-12 13:01 ` Michal Hocko
2012-10-11 22:36 ` KOSAKI Motohiro
2012-10-12 13:01 ` Michal Hocko
2012-10-15 22:04 ` [PATCH v2] " Michal Hocko
2012-10-15 22:07 ` [PATCH] doc: describe memcg swappiness more precisely memory.swappiness==0 Michal Hocko
2012-10-16 0:51 ` Kamezawa Hiroyuki
2012-10-16 0:54 ` David Rientjes [this message]
2012-11-07 22:10 ` [PATCH v2] memcg: oom: fix totalpages calculation for memory.swappiness==0 Andrew Morton
2012-11-07 22:46 ` Michal Hocko
2012-11-07 22:53 ` Andrew Morton
2012-11-08 8:35 ` Michal Hocko
2012-10-15 9:11 ` [RFC PATCH] memcg: oom: fix totalpages calculation for swappiness==0 Kamezawa Hiroyuki
2012-10-15 9:49 ` Michal Hocko
2012-10-15 14:25 ` KOSAKI Motohiro
2012-10-15 14:47 ` Michal Hocko
2012-10-15 22:33 ` KOSAKI Motohiro
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