From: Keir Fraser <keir@xen.org>
To: James Harper <james.harper@bendigoit.com.au>,
xen-devel@lists.xensource.com
Subject: Re: common time reference between domU and dom0
Date: Fri, 10 Dec 2010 07:19:53 +0000 [thread overview]
Message-ID: <C9278519.C560%keir@xen.org> (raw)
In-Reply-To: <AEC6C66638C05B468B556EA548C1A77D01BB896C@trantor>
System time, as exposed to guests by Xen, should be good enough.
-- Keir
On 10/12/2010 05:23, "James Harper" <james.harper@bendigoit.com.au> wrote:
> I would like to be able to measure front/back ring message latency
> between a Windows DomU and Dom0. To do this I need a common time
> reference between the two, preferably with at least microsecond
> precision (latency <1us is irrelevant for my purposes). Does such a
> thing exist? A small amount of overhead in measuring this latency is
> acceptable.
>
> Thanks
>
> James
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
next prev parent reply other threads:[~2010-12-10 7:19 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-10 5:23 common time reference between domU and dom0 James Harper
2010-12-10 7:19 ` Keir Fraser [this message]
2010-12-10 8:23 ` James Harper
2010-12-10 10:00 ` Keir Fraser
2010-12-10 10:20 ` James Harper
2010-12-10 10:22 ` Paolo Bonzini
2010-12-10 10:45 ` Keir Fraser
2010-12-10 20:27 ` Dan Magenheimer
2010-12-10 21:41 ` Paolo Bonzini
2010-12-10 10:45 ` Keir Fraser
2010-12-10 10:51 ` Tim Deegan
2010-12-10 20:24 ` Dan Magenheimer
2010-12-10 8:26 ` Henry Pepper
2010-12-10 10:03 ` Keir Fraser
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