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[Xen-devel] common time reference between domU and dom0

To: <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] common time reference between domU and dom0
From: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
Date: Fri, 10 Dec 2010 16:23:17 +1100
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Thread-index: AcuYKlmfwlYiX5ejQNegrVc1bZJ6nw==
Thread-topic: common time reference between domU and dom0
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


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