* Waiman Long <waiman.l...@hp.com> wrote:
> [...]
>
> Patches 2 improves the mutex spinning process by reducing contention among
> the
> spinners when competing for the mutex. This is done by using a MCS lock to
> put
> the spinners in a queue so that only the first spinner will try to acquire
> the
> mutex when it is available. This patch showed significant performance
> improvement of +30% on the AIM7 fserver and new_fserver workload.
Ok, that's really nice - and this approach has no arbitrary limits/tunings in
it.
Do you have a performance comparison to your first series (patches 1+2+3 IIRC)
-
how does this new series with MCS locking compare to the best previous result
from
that old series? Do we now achieve that level of performance?
Thanks,
Ingo
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