[Mesa-dev] Testing out Kristian's fast mtx patch

[Marathe, Yogesh]

3DMark I doubt, there is a 'driver overhead' sub-test under GFXBench which may show the
difference here. Overall, I never saw these benchmarks spending higher CPU % in libpthread
(mutexes), so I'm skeptical, it will affect anything in fps / total scores by large.

Thank you for pointing this out anyways, I should still try this.

-Yogesh.

>-----Original Message-----
>From: Palli, Tapani
>Sent: Tuesday, October 10, 2017 2:37 PM
>To: Timothy Arceri <tarceri at itsqueeze.com>; mesa-dev at lists.freedesktop.org
>Cc: Marathe, Yogesh <yogesh.marathe at intel.com>
>Subject: Re: [Mesa-dev] Testing out Kristian's fast mtx patch
>
>It's possible that this series could help with CPU intensive 3DMark ...
>FYI Yogesh.
>
>
>On 10/10/2017 05:45 AM, Timothy Arceri wrote:
>> After a recent discussion about this code from 2015 I was curious to
>> give it a try. The outstanding review item was that we shouldn't be
>> replacing the C11 mtx type/functions with our own, so I've renamed the
>> fast path to simple_mtx* and added a couple of patches to make use of
>> it.
>>
>> The idea is this fast mtx can be used in place of the full mtx
>> implementation when its of type mtx_plain.
>>
>> I though if anywhere we might see a change in the drawoverhead piglit
>> test but I didn't see any real change.
>>
>> Anyway since I've made the updates I thought I'd send it out. Maybe
>> someone else might find some better results. Kristian reported a 10%
>> increase in some internal Intel benchmarks, I wonder if thats still
>> the case.
>>
>> _______________________________________________
>> mesa-dev mailing list
>> mesa-dev at lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/mesa-dev
>>