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RADclock on Xen (was Re: [Xen-devel] [PATCH] time-xen : Reset monotonic

To: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Subject: RADclock on Xen (was Re: [Xen-devel] [PATCH] time-xen : Reset monotonic time when sync up time from dom0 to domU)
From: Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Date: Fri, 15 Oct 2010 09:39:37 +0100
Cc: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Keir Fraser <keir@xxxxxxx>, Shunli Yi <syi@xxxxxxxxxxxx>, dveitch@xxxxxxxxxxxxxx, Jan Beulich <JBeulich@xxxxxxxxxx>, Saipu Liu <saliu@xxxxxxxxxxxx>, Hang Du <hdu@xxxxxxxxxxxx>
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At 00:35 +0100 on 15 Oct (1287102942), Jeremy Fitzhardinge wrote:
>  On 10/14/2010 02:07 AM, Tim Deegan wrote:
> > 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. :)
> Neat!  Is it something we should encourage them to submit for xen-unstable?

Well I did, but there are no hypervisor patches. :) 

CC'ing the speaker: are there any dom0 tools or kernel patches we could
be looking at for xen-unstable?



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

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