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From: Rik van Riel <riel@redhat.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: linux-mm <linux-mm@kvack.org>, Linus Torvalds <torvalds@osdl.org>,
	Andrew Morton <akpm@osdl.org>,
	linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] mm: inactive-clean list
Date: Sun, 23 Jul 2006 01:50:43 -0400	[thread overview]
Message-ID: <44C30E33.2090402@redhat.com> (raw)
In-Reply-To: <1153167857.31891.78.camel@lappy>

Peter Zijlstra wrote:
> This patch implements the inactive_clean list spoken of during the VM summit.
> The LRU tail pages will be unmapped and ready to free, but not freeed.
> This gives reclaim an extra chance.

This patch makes it possible to implement Martin Schwidefsky's
hypervisor-based fast page reclaiming for architectures without
millicode - ie. Xen, UML and all other non-s390 architectures.

That could be a big help in heavily loaded virtualized environments.

The fact that it helps prevent the iSCSI memory deadlock is a
huge bonus too, of course :)

-- 
The answer is 42.  What is *your* question?

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  parent reply	other threads:[~2006-07-23  5:50 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-07-17 20:24 Peter Zijlstra
2006-07-18  3:37 ` Christoph Lameter
2006-07-18 12:16   ` Peter Zijlstra
2006-07-18 13:29     ` Christoph Lameter
2006-07-18 13:55       ` Martin J. Bligh
2006-07-18 13:59         ` Christoph Lameter
2006-07-18 15:12           ` Martin J. Bligh
2006-07-18 15:57             ` Christoph Lameter
2006-07-18 16:23               ` Martin J. Bligh
2006-07-18 14:03         ` Christoph Lameter
2006-07-18 14:25           ` Andrew Morton
2006-07-18 14:45             ` Christoph Lameter
2006-07-18 15:59               ` KAMEZAWA Hiroyuki
2006-07-23  5:50 ` Rik van Riel [this message]
2006-07-24 18:11   ` Christoph Lameter
2006-07-24 19:00     ` Rik van Riel
2006-07-25 20:25       ` Christoph Lameter
2006-07-25 21:37         ` Rik van Riel
2006-07-25 23:03           ` Christoph Lameter
2006-07-26  0:02             ` Rik van Riel
2006-07-26  0:05               ` Christoph Lameter
2006-07-26 11:00   ` Martin Schwidefsky
2006-07-26 11:11     ` Peter Zijlstra
2006-07-26 13:04       ` Martin Schwidefsky
2006-07-26 14:45         ` Peter Zijlstra
2006-07-27 11:16           ` Martin Schwidefsky
2006-07-26 15:41         ` Rik van Riel

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