linux-kernel - Re: [PATCH 3.12 00/96] 3.12.30-stable review

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Date:	Fri, 10 Oct 2014 11:42:28 +0000 (UTC)
From:	Holger Hoffstätte 
	<holger.hoffstaette@...glemail.com>
To:	linux-kernel@...r.kernel.org
Cc:	stable@...r.kernel.org
Subject: Re: [PATCH 3.12 00/96] 3.12.30-stable review

On Fri, 10 Oct 2014 09:32:45 +0200, William Dauchy wrote:

> Hi stable release team,
> 
> On Wed, Oct 1, 2014 at 10:57 AM, Jiri Slaby <jslaby@...e.cz> wrote:
>> This one is special. First, it is rounded (30). Second, most of the
>> patches are performance improvements. They are coming from SUSE
>> Enterprise Linux and all are backed by proper testing and performance
>> measurements. All this patchset was prepared and sent by Mel Gorman
>> with a support of other patchers from SUSE. Thanks to all of them.
> 
> I'm just wondering if 3.10.x and 3.14.x are going to benefit from
> these performance improvement patches as well.

This set of patches was awesome but also pretty large and touched some
nontrivial parts, so it's not just a simple matter of merging them
wholesale.

I merged a handful of these patches to my own private 3.14.x tree where
they work wonderfully, and some have already appeared in the latest
stable-3.14.21. Greg also said that he has more in the queue. :)

The one I have so far punted on due to the filesystem dependencies is
2457aec63745e235bcafb7ef312b182d8682f0fc aka: "mm: non-atomically mark
page accessed during page cache allocation where possible" - that would
be really nice to have.

-h

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