From: Christoph Lameter <clameter@sgi.com>
To: Mel Gorman <mel@csn.ul.ie>
Cc: Andy Whitcroft <apw@shadowen.org>, Andrew Morton <akpm@osdl.org>,
Nick Piggin <nickpiggin@yahoo.com.au>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Linux Memory Management List <linux-mm@kvack.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: Page allocator: Single Zone optimizations
Date: Tue, 7 Nov 2006 09:54:10 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.64.0611070947100.3791@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0611071629040.11212@skynet.skynet.ie>
On Tue, 7 Nov 2006, Mel Gorman wrote:
> Hence, I'm still convinced that slab pages for caches like inode and
> short-lived allocations need to be clustered separetly.
So the problem seems to be that some slab of "reclaimable" slabs are
not reclaimable at all even with the most aggressive approach?
Then we have a fundamental issue that we are unable to categorize
pages correctly. EasyReclaimable pages may be unreclaimable because they
are mlocked. Reclaimable (such as slab pages) may turn out to be not
reclaimable because some entries are pinned.
I think we will run into the same issues for EasyReclaim once an
application generates a sufficient amount of mlocked pages that are
placed all over the memory of interest.
Could it be that the only reason that the current approach works is that
we have not tested with an application that behaves this way?
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next prev parent reply other threads:[~2006-11-07 17:54 UTC|newest]
Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-17 0:50 Christoph Lameter
2006-10-17 1:10 ` Andrew Morton
2006-10-17 1:13 ` Christoph Lameter
2006-10-17 1:27 ` KAMEZAWA Hiroyuki
2006-10-17 1:25 ` Christoph Lameter
2006-10-17 6:04 ` Nick Piggin
2006-10-17 17:54 ` Christoph Lameter
2006-10-18 11:15 ` Nick Piggin
2006-10-18 19:38 ` Andrew Morton
2006-10-23 23:08 ` Christoph Lameter
2006-10-24 1:07 ` Christoph Lameter
2006-10-26 22:09 ` Andrew Morton
2006-10-26 22:28 ` Christoph Lameter
2006-10-28 1:00 ` Christoph Lameter
2006-10-28 2:04 ` Andrew Morton
2006-10-28 2:12 ` Christoph Lameter
2006-10-28 2:24 ` Andrew Morton
2006-10-28 2:31 ` Christoph Lameter
2006-10-28 4:43 ` Andrew Morton
2006-10-28 7:47 ` KAMEZAWA Hiroyuki
2006-10-28 16:12 ` Andi Kleen
2006-10-29 0:48 ` Christoph Lameter
2006-10-29 1:04 ` Andrew Morton
2006-10-29 1:29 ` Christoph Lameter
2006-10-29 11:32 ` Nick Piggin
2006-10-30 16:41 ` Christoph Lameter
2006-11-01 18:26 ` Mel Gorman
2006-11-01 20:34 ` Andrew Morton
2006-11-01 21:00 ` Christoph Lameter
2006-11-01 21:46 ` Andrew Morton
2006-11-01 21:50 ` Christoph Lameter
2006-11-01 22:13 ` Mel Gorman
2006-11-01 23:29 ` Christoph Lameter
2006-11-02 0:22 ` Andrew Morton
2006-11-02 0:27 ` Christoph Lameter
2006-11-02 12:45 ` Mel Gorman
2006-11-01 22:10 ` Mel Gorman
2006-11-02 17:37 ` Andy Whitcroft
2006-11-02 18:08 ` Christoph Lameter
2006-11-02 20:58 ` Mel Gorman
2006-11-02 21:04 ` Christoph Lameter
2006-11-02 21:16 ` Mel Gorman
2006-11-02 21:52 ` Christoph Lameter
2006-11-02 22:37 ` Mel Gorman
2006-11-02 22:50 ` Christoph Lameter
2006-11-03 9:14 ` Mel Gorman
2006-11-03 13:17 ` Andy Whitcroft
2006-11-03 18:11 ` Christoph Lameter
2006-11-03 19:06 ` Mel Gorman
2006-11-03 19:44 ` Christoph Lameter
2006-11-03 21:11 ` Mel Gorman
2006-11-03 21:42 ` Christoph Lameter
2006-11-03 21:50 ` Andrew Morton
2006-11-03 21:53 ` Christoph Lameter
2006-11-03 22:12 ` Andrew Morton
2006-11-03 22:15 ` Christoph Lameter
2006-11-03 22:19 ` Andi Kleen
2006-11-04 0:37 ` Christoph Lameter
2006-11-04 1:32 ` Andi Kleen
2006-11-06 16:40 ` Christoph Lameter
2006-11-06 16:56 ` Andi Kleen
2006-11-06 17:00 ` Christoph Lameter
2006-11-06 17:07 ` Andi Kleen
2006-11-06 17:12 ` Hugh Dickins
2006-11-06 17:15 ` Christoph Lameter
2006-11-06 17:20 ` Andi Kleen
2006-11-06 17:26 ` Christoph Lameter
2006-11-07 16:30 ` Mel Gorman
2006-11-07 17:54 ` Christoph Lameter [this message]
2006-11-07 18:14 ` Mel Gorman
2006-11-08 0:29 ` KAMEZAWA Hiroyuki
2006-11-08 2:08 ` Christoph Lameter
2006-11-13 21:08 ` Mel Gorman
2006-11-03 12:48 ` Peter Zijlstra
2006-11-03 18:15 ` Christoph Lameter
2006-11-03 18:53 ` Peter Zijlstra
2006-11-03 19:23 ` Christoph Lameter
2006-11-02 18:52 ` Andrew Morton
2006-11-02 21:51 ` Mel Gorman
2006-11-02 22:03 ` Andy Whitcroft
2006-11-02 22:11 ` Andrew Morton
2006-11-01 18:13 ` Mel Gorman
2006-11-01 17:39 ` Mel Gorman
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