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Re: [Xen-devel] [PATCH] time-xen : Reset monotonic time when sync up tim

To: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Subject: Re: [Xen-devel] [PATCH] time-xen : Reset monotonic time when sync up time from dom0 to domU
From: Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Date: Thu, 14 Oct 2010 10:07:37 +0100
Cc: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Keir Fraser <keir@xxxxxxx>, Shunli Yi <syi@xxxxxxxxxxxx>, Jan Beulich <JBeulich@xxxxxxxxxx>, Saipu Liu <saliu@xxxxxxxxxxxx>, Hang Du <hdu@xxxxxxxxxxxx>
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At 17:48 +0100 on 13 Oct (1286992083), Jeremy Fitzhardinge wrote:
> > There was a paper about this at OSDI last week:
> > http://www.usenix.org/events/osdi10/tech/full_papers/Broomhead.pdf
> 
> Ooh, look, RADclock, just what I was thinking about.

Yes, it looks pretty good.  Also they can use Xen stime as the local
oscillator and distribute drift numbers from xenstore, so no hypervisor
patches (and no hypervisor-interface changes) required. :)

Tim.

-- 
Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Principal Software Engineer, XenServer Engineering
Citrix Systems UK Ltd.  (Company #02937203, SL9 0BG)

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