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Re: [Xen-devel] common time reference between domU and dom0
| To: | James Harper <james.harper@xxxxxxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] common time reference between domU and dom0 |
| From: | Keir Fraser <keir@xxxxxxx> |
| Date: | Fri, 10 Dec 2010 07:19:53 +0000 |
| Cc: | |
| Delivery-date: | Thu, 09 Dec 2010 23:21:53 -0800 |
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| Thread-topic: | [Xen-devel] common time reference between domU and dom0 |
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System time, as exposed to guests by Xen, should be good enough. -- Keir On 10/12/2010 05:23, "James Harper" <james.harper@xxxxxxxxxxxxxxxx> 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@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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