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Date: Wed, 10 Sep 2014 09:57:56 -0700
From: Dave Hansen <dave.hansen@intel.com>
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To: Michal Hocko <mhocko@suse.cz>, Dave Hansen <dave@sr71.net>
CC: Johannes Weiner <hannes@cmpxchg.org>, Hugh Dickins <hughd@google.com>,
        Tejun Heo <tj@kernel.org>, Linux-MM <linux-mm@kvack.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Vladimir Davydov <vdavydov@parallels.com>,
        LKML <linux-kernel@vger.kernel.org>
Subject: Re: regression caused by cgroups optimization in 3.17-rc2
References: <54061505.8020500@sr71.net> <5406262F.4050705@intel.com> <54062F32.5070504@sr71.net> <20140904142721.GB14548@dhcp22.suse.cz> <5408CB2E.3080101@sr71.net> <20140905092537.GC26243@dhcp22.suse.cz> <20140910162936.GI25219@dhcp22.suse.cz>
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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?