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