From: Andi Kleen <andi@firstfloor.org>
To: Christoph Lameter <cl@linux.com>
Cc: akpm@linux-foundation.org, npiggin@kernel.dk,
Pekka Enberg <penberg@cs.helsinki.fi>,
David Rientjes <rientjes@google.com>,
linux-mm@kvack.org, Andi Kleen <andi@firstfloor.org>
Subject: Re: shrinkers: Add node to indicate where to target shrinking
Date: Thu, 21 Oct 2010 20:12:25 +0200 [thread overview]
Message-ID: <20101021181225.GA32737@basil.fritz.box> (raw)
In-Reply-To: <alpine.DEB.2.00.1010211259360.24115@router.home>
On Thu, Oct 21, 2010 at 01:00:37PM -0500, Christoph Lameter wrote:
> Add a field node to struct shrinker that can be used to indicate on which
> node the reclaim should occur. The node field also can be set to NUMA_NO_NODE
> in which case a reclaim pass over all nodes is desired.
>
> NUMA_NO_NODE will be used for direct reclaim since reclaim is not specific
> there (Some issues are still left since we are not respecting boundaries of
> memory policies and cpusets).
>
> A node will be supplied for kswap and zone reclaim invocations of zone reclaim.
> It is also possible then for the shrinker invocation from mm/memory-failure.c
> to indicate the node for which caches need to be shrunk.
>
> After this patch it is possible to make shrinkers node aware by checking
> the node field of struct shrinker. If a shrinker does not support per node
> reclaim then it can still do global reclaim.
Thanks. Looks good and is definitely a step in the right direction.
The memory-failure patch is ok for me if someone wants to merge it into
another tree.
Acked-by: Andi Kleen <ak@linux.intel.com>
-Andi
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next prev parent reply other threads:[~2010-10-21 18:12 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-21 17:59 vmscan: Do not run shrinkers for zones other than ZONE_NORMAL Christoph Lameter
2010-10-21 18:00 ` shrinkers: Add node to indicate where to target shrinking Christoph Lameter
2010-10-21 18:12 ` Andi Kleen [this message]
2010-10-21 20:57 ` David Rientjes
2010-10-21 21:07 ` Christoph Lameter
2010-10-22 13:27 ` Andi Kleen
2010-10-21 23:58 ` Nick Piggin
2010-10-22 12:12 ` Andi Kleen
2010-10-22 15:55 ` Christoph Hellwig
2010-10-22 16:32 ` Christoph Lameter
2010-10-24 1:42 ` Nick Piggin
2010-10-25 0:57 ` KOSAKI Motohiro
2010-10-25 14:59 ` Christoph Lameter
2010-11-09 4:03 ` Nick Piggin
2010-10-22 16:46 ` Andi Kleen
2010-10-24 1:31 ` Nick Piggin
2010-11-14 2:26 ` Michel Lespinasse
2010-11-14 7:10 ` KOSAKI Motohiro
2010-11-14 11:05 ` Michel Lespinasse
2010-11-15 0:29 ` KOSAKI Motohiro
2010-10-21 18:13 ` vmscan: Do not run shrinkers for zones other than ZONE_NORMAL Andi Kleen
2010-10-21 18:22 ` Christoph Lameter
2010-10-21 18:27 ` Christoph Lameter
2010-10-21 18:33 ` Andi Kleen
2010-10-21 20:48 ` David Rientjes
2010-10-21 20:54 ` Christoph Lameter
2010-10-21 19:40 ` Andrew Morton
2010-10-21 20:03 ` Christoph Lameter
2010-10-21 20:14 ` Andrew Morton
2010-10-21 20:28 ` Christoph Lameter
2010-10-21 20:36 ` Andrew Morton
2010-10-21 20:49 ` Christoph Lameter
2010-10-21 20:59 ` Andrew Morton
2010-10-21 21:13 ` Christoph Lameter
2010-10-21 21:21 ` Andrew Morton
2010-10-21 23:04 ` Christoph Lameter
2010-10-21 23:56 ` Nick Piggin
2010-10-22 1:37 ` KOSAKI Motohiro
2010-10-22 14:06 ` Christoph Lameter
2010-10-24 1:37 ` Nick Piggin
2010-10-25 1:22 ` KOSAKI Motohiro
2010-10-25 15:07 ` Christoph Lameter
2010-10-26 2:52 ` KOSAKI Motohiro
2010-10-26 12:42 ` KOSAKI Motohiro
2010-10-26 13:10 ` Christoph Lameter
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