Re: Preemptable Ticket Spinlock

[Jiannan Ouyang]

On Mon, Apr 22, 2013 at 4:55 PM, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:

>
> Which pv_lock? The current pv spinlock mess is basically the old unfair
> thing. The later patch series I referred to earlier implemented a
> paravirt ticket lock, that should perform much better under overcommit.
>

Yes, it is a paravirt *ticket* spinck. I got the patch from
Raghavendra K T through email
http://lwn.net/Articles/495597/
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