From: Vincent Hanquez <vincent.hanquez@eu.citrix.com>
To: Dan Magenheimer <dan.magenheimer@oracle.com>
Cc: "Eric Chanudet (Intern)" <eric.chanudet@citrix.com>,
xen-devel <xen-devel@lists.xensource.com>
Subject: Re: [PATCH] xl: tsc_mode parameter in guest configuration file
Date: Tue, 30 Mar 2010 09:15:04 +0100 [thread overview]
Message-ID: <4BB1B308.4040209@eu.citrix.com> (raw)
In-Reply-To: <42f1bd27-03fd-4b5d-a465-35bbe7b388fa@default>
On 29/03/10 20:49, Dan Magenheimer wrote:
> Thanks Eric!
>
> Sorry I didn't mention this earlier, but I just remembered it.
>
> For some of the tsc_mode's to work properly, tsc_mode AND
> additional tsc information must be preserved across a
> save/restore/migration. Also, the no_migrate config option has
> an indirect impact on tsc_mode; with no_migrate specified
> certain guests will be able to use tsc as their primary
> clocksource, which can be much faster. (IOW, implementing
> no_migrate is not a requirement, but may be worthwhile.)
it seems that the tsc information are automatically save by xenguest
saving code, and embedded in the save image.
--
Vincent
next prev parent reply other threads:[~2010-03-30 8:15 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-29 12:35 [PATCH] xl: tsc_mode parameter in guest configuration file Eric Chanudet
2010-03-29 14:11 ` Dan Magenheimer
2010-03-29 15:43 ` Vincent Hanquez
2010-03-29 18:32 ` Eric Chanudet
2010-03-29 19:49 ` Dan Magenheimer
2010-03-30 8:15 ` Vincent Hanquez [this message]
2010-03-29 15:45 ` Eric Chanudet
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