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Re: [Xen-devel] [PATCH] per-cpu timer changes

To: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH] per-cpu timer changes
From: Andrew Thompson <andrewkt@xxxxxxxxxxx>
Date: Thu, 26 May 2005 14:06:21 -0400
Cc: Don Fry <brazilnut@xxxxxxxxxx>, Xen-devel@xxxxxxxxxxxxxxxxxxx
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Keir Fraser wrote:
On 26 May 2005, at 18:34, Don Fry wrote:
The time going backwards was only occasionally, and it was a BIG jump
backwards.  I tracked it down yesterday to a problem with doing 32-bit
arithmetic in Linux on the tsc values.  For some reason, every 5-20
minutes xen seems to pause for about 5 seconds.
>> <snip>

Have you noticed this directly in any dom's, or just in xen?

It would be good to know where those 5 seconds go.

See: UFOs, abductions, etc... ;)

--
Andrew Thompson
http://aktzero.com/

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