Re: [Xen-devel] Xen spinlock questions

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 15/8/08 13:15, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote:

> I can't really explain the results of testing with this version of the patch:
> While the number of false wakeups got further reduced by somewhat
> less than 20%, both time spent in the kernel and total execution time
> went up (8% and 4% respectively) compared to my original (and from
> all I can tell worse) version of the patch. Nothing else changed as far as
> I'm aware.

That is certainly odd. Presumably consistent across a few runs? I can't
imagine where extra time would be being spent though...

 -- Keir



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