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From: Dan Shearer <dan@shearer.org>
To: William Stearns <wstearns@pobox.com>
Cc: ML-uml-devel <user-mode-linux-devel@lists.sourceforge.net>
Subject: Re: [uml-devel] Swapping directly to host swap area?
Date: Tue, 27 Jan 2004 13:31:19 +1030	[thread overview]
Message-ID: <20040127030119.GV4203@erizo.shearer.org> (raw)
In-Reply-To: <Pine.LNX.4.44.0401251827030.2766-100000@sparrow>

On Sun, Jan 25, 2004 at 06:34:12PM -0500, William Stearns wrote:
> 
> 	When a VM needs to swap out, is there some way the UML kernel
> could send that sector directly to the host swap area instead of running
> its own swap?  

But that would involve making it possible for an ordinary userspace
process (for example, /bin/ls) to affect what the VM is doing on the
host.

Jeff's /dev/anon and ubd=mmap is all about addressing your problem from
the point of view of memory utilisation. See
http://user-mode-linux.sourceforge.net/devanon.html

-- 
Dan Shearer
dan@shearer.org


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  reply	other threads:[~2004-01-27  2:59 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-01-25 23:34 [uml-devel] Swapping directly to host swap area? William Stearns
2004-01-27  3:01 ` Dan Shearer [this message]
2004-01-28  4:39 ` Jeff Dike
2004-01-28 14:01   ` [uml-devel] O_DIRECT (was: Swapping directly to host swap area?) Goetz Bock
2004-01-30 17:27     ` Jeff Dike
2004-02-05 16:59   ` [uml-devel] Swapping directly to host swap area? BlaisorBlade
2004-02-11  0:43     ` Jeff Dike
2004-02-12 19:08       ` BlaisorBlade
2004-02-12 21:36         ` Jeff Dike
2004-03-19  5:51   ` William Stearns
2004-03-19 16:58     ` Matt Ayres

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