Re: [PATCH v3 2/7] locking/pvqspinlock: Add pending bit support

[Waiman Long]

On 07/26/2015 07:09 PM, Davidlohr Bueso wrote:
> On Wed, 2015-07-22 at 16:12 -0400, Waiman Long wrote:
> > Using a locking microbenchmark on the same system, the locking
> > rates in (kops/s) were:
> >
> >    Threads		Rate w/o patch	Rate with patch
> >    -------		--------------	---------------
> >    2 (same socket)	  6,515,265	  7,077,476
> >    2 (diff sockets)	  2,967,145	  4,353,851
> At this level stddev would be nice to have, as these sort of things have
> a lot of variation.
>
> Out of general interest, are these microbenchmarks available? Would you
> care to add something like that to perf-bench? I assume they would
> probably be x86 specific.

Ingo has asked similar question and he suggested doing an user-space 
implementation in perf bench. I will take a further look at that when I 
have time.

Cheers,
Longman
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