From mboxrd@z Thu Jan  1 00:00:00 1970
From: Greg Thelen <gthelen-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
Subject: Re: [PATCH 0/7] memcg targeted shrinking
Date: Thu, 14 Feb 2013 17:28:57 -0800
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In-Reply-To: <1360328857-28070-1-git-send-email-glommer-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
	(Glauber Costa's message of "Fri, 8 Feb 2013 17:07:30 +0400")
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To: Glauber Costa <glommer-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
Cc: linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>, Michal Hocko <mhocko-AlSwsSmVLrQ@public.gmane.org>, Johannes Weiner <hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>, kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org, Dave Shrinnker <david-FqsqvQoI3Ljby3iVrkZq2A@public.gmane.org>, linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org

On Fri, Feb 08 2013, Glauber Costa wrote:

> This patchset implements targeted shrinking for memcg when kmem limits are
> present. So far, we've been accounting kernel objects but failing allocations
> when short of memory. This is because our only option would be to call the
> global shrinker, depleting objects from all caches and breaking isolation.
>
> This patchset builds upon the recent work from David Chinner
> (http://oss.sgi.com/archives/xfs/2012-11/msg00643.html) to implement NUMA
> aware per-node LRUs. I build heavily on its API, and its presence is implied.
>
> The main idea is to associate per-memcg lists with each of the LRUs. The main
> LRU still provides a single entry point and when adding or removing an element
> from the LRU, we use the page information to figure out which memcg it belongs
> to and relay it to the right list.
>
> This patchset is still not perfect, and some uses cases still need to be
> dealt with. But I wanted to get this out in the open sooner rather than
> later. In particular, I have the following (noncomprehensive) todo list:
>
> TODO:
> * shrink dead memcgs when global pressure kicks in.
> * balance global reclaim among memcgs.
> * improve testing and reliability (I am still seeing some stalls in some cases)

Do you have a git tree with these changes so I can see Dave's numa LRUs
plus these changes?