From: Christoph Lameter <clameter@sgi.com>
To: linux-mm@kvack.org
Cc: akpm@osdl.org, Christoph Hellwig <hch@infradead.org>,
Arjan van de Ven <arjan@infradead.org>,
Nigel Cunningham <nigel@nigel.suspend2.net>,
"Martin J. Bligh" <mbligh@mbligh.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Nick Piggin <nickpiggin@yahoo.com.au>,
Christoph Lameter <clameter@sgi.com>,
Matt Mackall <mpm@selenic.com>, Rik van Riel <riel@redhat.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Subject: [RFC 0/7] Move mlocked pages off the LRU and track them
Date: Mon, 5 Feb 2007 12:52:35 -0800 (PST) [thread overview]
Message-ID: <20070205205235.4500.54958.sendpatchset@schroedinger.engr.sgi.com> (raw)
[RFC] Remove mlocked pages from the LRU and track them
The patchset removes mlocked pages from the LRU and maintains a counter
for the number of discovered mlocked pages.
This is a lazy scheme for accounting for mlocked pages. The pages
may only be discovered to be mlocked during reclaim. However, we attempt
to detect mlocked pages at various other opportune moments. So in general
the mlock counter is not far off the number of actual mlocked pages in
the system.
Patch against 2.6.20-rc6-mm3
Known problems to be resolved:
- Page state bit used to mark a page mlocked is not available on i386 with
NUMA.
- Note tested on SMP, UP. Need to catch a plane in 2 hours.
Tested on:
IA64 NUMA 12p
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next reply other threads:[~2007-02-05 20:52 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-05 20:52 Christoph Lameter [this message]
2007-02-05 20:52 ` [RFC 1/7] Make try_to_unmap return a special exit code Christoph Lameter
2007-02-05 20:52 ` [RFC 2/7] Add PageMlocked() page state bit and lru infrastructure Christoph Lameter
2007-02-05 20:52 ` [RFC 3/7] Add NR_MLOCK ZVC Christoph Lameter
2007-02-05 20:52 ` [RFC 4/7] Logic to move mlocked pages Christoph Lameter
2007-02-05 20:53 ` [RFC 5/7] Consolidate new anonymous page code paths Christoph Lameter
2007-02-05 20:53 ` [RFC 6/7] Avoid putting new mlocked anonymous pages on LRU Christoph Lameter
2007-02-05 20:53 ` [RFC 7/7] Opportunistically move mlocked pages off the LRU Christoph Lameter
2007-02-06 16:04 ` [RFC 0/7] Move mlocked pages off the LRU and track them Lee Schermerhorn
2007-02-06 16:50 ` Larry Woodman
2007-02-06 19:51 ` Andrew Morton
2007-02-07 10:51 ` Larry Woodman
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