From: Jeff Dike <jdike@addtoit.com>
To: BlaisorBlade <blaisorblade_spam@yahoo.it>
Cc: William Stearns <wstearns@pobox.com>,
user-mode-linux-devel@lists.sourceforge.net
Subject: Re: [uml-devel] Swapping directly to host swap area?
Date: Tue, 10 Feb 2004 19:43:24 -0500 [thread overview]
Message-ID: <200402110043.i1B0hOip004189@ccure.user-mode-linux.org> (raw)
In-Reply-To: Your message of "Thu, 05 Feb 2004 17:59:03 +0100." <200402051759.03917.blaisorblade_spam@yahoo.it>
blaisorblade_spam@yahoo.it said:
> About this, my idea was that using swap both on the host and on the
> guests is not very useful:
My suggestions were aimed at making the host less likely to swap. There are
various pathological things which happen when both UML and the host are
swapping. Having said that, the host needs to be able to swap UMLs if the
memory situation is so bad that there is no other choice.
> - because the host already sees which pages are accessed and which not
> (an access inside UML is an access inside the host); the only
> difference is that the host can swap even the guest kernel, while UML
> not;
UML might have a better idea than the host, though.
Jeff
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next prev parent reply other threads:[~2004-02-11 0:17 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
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 [this message]
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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