From: David Rientjes <rientjes@google.com>
To: Roman Gushchin <klamm@yandex-team.ru>
Cc: Michal Hocko <mhocko@suse.cz>, Christoph Lameter <cl@gentwo.org>,
penberg@kernel.org, mpm@selenic.com, akpm@linux-foundation.org,
mgorman@suse.de, glommer@parallels.com, hannes@cmpxchg.org,
minchan@kernel.org, jiang.liu@huawei.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] slub: Avoid direct compaction if possible
Date: Thu, 27 Jun 2013 13:41:20 -0700 (PDT) [thread overview]
Message-ID: <alpine.DEB.2.02.1306271340240.17334@chino.kir.corp.google.com> (raw)
In-Reply-To: <51CBFC95.9070002@yandex-team.ru>
On Thu, 27 Jun 2013, Roman Gushchin wrote:
> > They certainly aren't enough, the kernel you're running suffers from a
> > couple different memory compaction issues that were fixed in 3.7. I
> > couldn't sympathize with your situation more, I faced the same issue
> > because of thp and not slub (we use slab).
> >
> > > I'll try to reproduce the issue on raw 3.9.
> > >
>
> I can't reproduce the issue on 3.9.
> It seems that compaction fixes in 3.7 solve the problem.
>
Yeah, we had significant problems with memory compaction in 3.3 and 3.4
kernels, so if you need to run with such a kernel you'll want to backport
the listed commits. I'm not sure we could get such invasive changes into
a stable release, unfortunately.
prev parent reply other threads:[~2013-06-27 20:41 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-14 13:17 [PATCH] slub: Avoid direct compaction if possible Roman Gushchin
2013-06-14 14:32 ` Christoph Lameter
2013-06-14 15:17 ` Roman Gushchin
2013-06-14 16:08 ` Christoph Lameter
2013-06-14 16:52 ` Roman Gushchin
2013-06-14 20:26 ` David Rientjes
2013-06-17 12:34 ` Roman Gushchin
2013-06-17 14:27 ` Michal Hocko
2013-06-17 14:54 ` Roman Gushchin
2013-06-17 21:44 ` David Rientjes
2013-06-27 8:49 ` Roman Gushchin
2013-06-27 20:41 ` David Rientjes [this message]
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