On 04/20/2010 09:42 AM, Jeremy Fitzhardinge wrote:
On 04/20/2010 11:54 AM, Avi Kivity wrote:
On 04/20/2010 09:23 PM, Jeremy Fitzhardinge wrote:
On 04/20/2010 02:31 AM, Avi Kivity wrote:
btw, do you want this code in pvclock.c, or shall we keep it kvmclock
specific?
I think its a pvclock-level fix. I'd been hoping to avoid having
something like this, but I think its ultimately necessary.
Did you observe drift on Xen, or is this "ultimately" pointing at the
future?
People are reporting weirdnesses that "clocksource=jiffies" apparently
resolves. Xen and KVM are faced with the same hardware constraints, and
it wouldn't surprise me if there were small measurable
non-monotonicities in the PV clock under Xen. May as well be safe.
Does the drift only occur on SMP VMs?
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