From: David Vrabel <david.vrabel@citrix.com>
To: Wei Liu <wei.liu2@citrix.com>, xen-devel@lists.xen.org
Cc: Ian Campbell <ian.campbell@citrix.com>,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
Dario Faggioli <dario.faggioli@citrix.com>,
David Vrabel <david.vrabel@citrix.com>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>
Subject: Re: Linux Xen Balloon Driver Improvement (Draft 2)
Date: Mon, 15 Dec 2014 10:52:40 +0000 [thread overview]
Message-ID: <548EBD78.8080904@citrix.com> (raw)
In-Reply-To: <20141027123328.GA9067@zion.uk.xensource.com>
On 27/10/14 12:33, Wei Liu wrote:
>
> ### Periodically exchange normal size pages with huge pages
>
> Worker thread wakes up periodically to check if there are enough pages
> in normal size page queue to coalesce into a huge page. If so, it will
> try to exchange that huge page into a number of normal size pages with
> XENMEM\_exchange hypercall.
As Andrew recently pointed out[1], changes to a guest's p2m are not
properly handled during migration. This would have to be fixed before
we can have any sort of background memory exchange process.
David
[1] http://lists.xen.org/archives/html/xen-devel/2014-11/msg01954.html
next prev parent reply other threads:[~2014-12-15 10:52 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-27 12:33 Linux Xen Balloon Driver Improvement (Draft 2) Wei Liu
2014-10-27 14:23 ` David Vrabel
2014-10-27 16:29 ` Wei Liu
2014-10-27 17:29 ` David Vrabel
2014-10-27 19:10 ` Wei Liu
2014-10-27 19:42 ` Stefano Stabellini
2014-10-27 19:14 ` Wei Liu
2014-10-28 10:51 ` David Vrabel
2014-10-29 11:01 ` Wei Liu
2014-12-15 10:52 ` David Vrabel [this message]
2014-12-15 10:58 ` Wei Liu
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