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Subject: Re: [PATCH] posix-timers: RCU conversion
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Avi Kivity <avi@redhat.com>
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Date: Tue, 05 Apr 2011 11:03:49 +0200
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On Tue, 2011-04-05 at 11:56 +0300, Avi Kivity wrote:
> 
> Could be waking up due to guest wakeups, or qemu internal wakeups 
> (display refresh) or due to guest timer sources which are masked away in 
> the guest (if that's the case we should optimize it away).

Right, so I guess we're all clutching at straws here :-)

Ben how usable is that system when its in that state? Could you run a
function trace or a trace with all kvm and sched trace-events enabled?