linux-kernel - Re: regression caused by cgroups optimization in 3.17-rc2

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Message-ID: <54108314.80400@intel.com>
Date:	Wed, 10 Sep 2014 09:57:56 -0700
From:	Dave Hansen <dave.hansen@...el.com>
To:	Michal Hocko <mhocko@...e.cz>, Dave Hansen <dave@...1.net>
CC:	Johannes Weiner <hannes@...xchg.org>,
	Hugh Dickins <hughd@...gle.com>, Tejun Heo <tj@...nel.org>,
	Linux-MM <linux-mm@...ck.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Vladimir Davydov <vdavydov@...allels.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: regression caused by cgroups optimization in 3.17-rc2

On 09/10/2014 09:29 AM, Michal Hocko wrote:
> I do not have a bigger machine to play with unfortunately. I think the
> patch makes sense on its own. I would really appreciate if you could
> give it a try on your machine with !root memcg case to see how much it
> helped. I would expect similar results to your previous testing without
> the revert and Johannes' patch.

So you want to see before/after this patch:

Subject: [PATCH] mm, memcg: Do not kill release batching in
 free_pages_and_swap_cache

And you want it on top of a kernel with the revert or without?
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