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From: Rik van Riel <riel@redhat.com>
To: Dan Magenheimer <dan.magenheimer@oracle.com>
Cc: linux-kernel@vger.kernel.org, npiggin@suse.de, akpm@osdl.org,
	jeremy@goop.org, xen-devel@lists.xensource.com,
	tmem-devel@oss.oracle.com, alan@lxorguk.ukuu.org.uk,
	linux-mm@kvack.org, kurt.hackel@oracle.com,
	Rusty Russell <rusty@rustcorp.com.au>,
	dave.mccracken@oracle.com, Marcelo Tosatti <mtosatti@redhat.com>,
	sunil.mushran@oracle.com, Avi Kivity <avi@redhat.com>,
	Schwidefsky <schwidefsky@de.ibm.com>,
	chris.mason@oracle.com, Balbir Singh <balbir@linux.vnet.ibm.com>
Subject: Re: [RFC PATCH 0/4] (Take 2): transcendent memory ("tmem") for Linux
Date: Tue, 07 Jul 2009 13:28:13 -0400	[thread overview]
Message-ID: <4A5385AD.9000800@redhat.com> (raw)
In-Reply-To: <482d25af-01eb-4c2a-9b1d-bdaf4020ce88@default>

Dan Magenheimer wrote:

> "Preswap" IS persistent, but for various reasons may not always be
> available for use, again due to factors that may not be visible to the
> kernel (but, briefly, if the kernel is being "good" and has shared its
> resources nicely, then it will be able to use preswap, else it will not).
> Once a page is put, a get on the page will always succeed. 

What happens when all of the free memory on a system
has been consumed by preswap by a few guests?

Will the system be unable to start another guest,
or is there some way to free the preswap memory?

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  reply	other threads:[~2009-07-07 17:26 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-07-07 16:17 Dan Magenheimer
2009-07-07 17:28 ` Rik van Riel [this message]
2009-07-07 19:53   ` Dan Magenheimer
2009-07-08 22:56 ` Anthony Liguori
2009-07-08 23:31   ` [Xen-devel] " Dan Magenheimer
2009-07-08 23:57     ` Anthony Liguori
2009-07-09  0:17       ` Jeremy Fitzhardinge
2009-07-09  0:27         ` Anthony Liguori
2009-07-09  1:20   ` Rik van Riel
2009-07-09 21:09     ` Dan Magenheimer
2009-07-09 21:27       ` Rik van Riel
2009-07-09 21:48         ` Dan Magenheimer
2009-07-09 21:41       ` Anthony Liguori
2009-07-09 22:34         ` Dan Magenheimer
2009-07-09 22:45           ` Rik van Riel
2009-07-09 23:33           ` Anthony Liguori
2009-07-10 15:23             ` Dan Magenheimer
2009-07-12  9:20               ` Avi Kivity
2009-07-12 16:28                 ` Dan Magenheimer
2009-07-12 17:27                   ` Avi Kivity
2009-07-12 20:59                     ` Dan Magenheimer
2009-07-12 13:28               ` Anthony Liguori
2009-07-12 16:20                 ` Dan Magenheimer
2009-07-12 17:16                   ` Avi Kivity
2009-07-12 19:34                     ` Anthony Liguori
2009-07-13 20:17                       ` Chris Mason
2009-07-13 20:38                         ` Anthony Liguori
2009-07-13 20:38                         ` Anthony Liguori
2009-07-13 21:01                           ` Chris Mason
2009-07-13 21:17                             ` Anthony Liguori
2009-07-26 15:00                               ` Avi Kivity
2009-07-12 20:39                     ` [Xen-devel] " Dan Magenheimer
2009-07-12 20:43                       ` Avi Kivity
2009-07-12 21:08                         ` Dan Magenheimer
2009-07-13 11:33                           ` Avi Kivity

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