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Re: [Xen-devel] RE: [PATCH] rendezvous-based local time calibration WOW!

On Mon, Aug 11, 2008 at 03:46:10PM +0100, Keir Fraser wrote:

> >> Depending on how critical this guarantee is, I wouldn't rely on Xen to
> >> perform perfectly. Probably you should keep your lock.
> > 
> > Or maybe make it optional, and let people turn it on when VCPUs are
> > pinned (VCPU migration doesn't make much sense to me for server
> > workloads AFAICS).
> > 
> > That lock is *painful*.
> What guarantee are you providing? Per thread, per address space, or global
> monotonicity?

Per thread non-strict monotonicity.


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