[Mesa-dev] [PATCH 0/4] Call for testing: Gallium set_index_buffer removal etc.

[Brian Paul]

On 04/28/2017 05:12 PM, Marek Olšák wrote:
> Hi,
>
> This series shrinks various gallium structures and removes
> set_index_buffer in order to decrease CPU overhead.
>
>
> PART 1: Performance results
>
> All testing below was done with radeonsi, and I used the drawoverhead
> microbenchmark from mesa/demos ported to piglit and using GL 3.0
> Compat and GL 3.2 Core (same GL states in both contexts).
>
> 1) Performance difference for the removal of set_index_buffer only:
>
>    Compat: DrawElements: 5.1 -> 5.3 million draws/second
>    Core:   DrawElements: 5.1 -> 5.5 million draws/second
>
> The result is better for the core profile where u_vbuf is disabled.
>
>
> 2) Performance difference with all 4 patches (Core profile only)
>
>     DrawArrays: 8.3 -> 8.5 million draws/second
>     DrawElements: 5.2 -> 5.8 million draws/second
>
>
> 3) Performance difference with threaded Gallium (Core profile only):
>
>     DrawElements: 5.9 -> 7.1 million draws/second
>
> Threaded Gallium is still work in progress and might require
> a non-trivial amount of driver work.
>
>
> PART 2: Call for testing
>
> These drivers have been tested:
> - ddebug
> - llvmpipe
> - r300 (also with SWTCL)
> - r600
> - radeonsi
> - softpipe
> - trace
>
> These drivers need testing:
> - etnaviv
> - freedreno
> - nv30
> - nv50
> - nvc0
> - svga
> - swr
> - vc4
> - virgl
>
> The following state trackers might need testing:
> - nine
>
> You can get the patches by fetching:
>    git://people.freedesktop.org/~mareko/mesa gallium-cleanup
>
> I'd like to ask to you for testing drivers that I couldn't test.
> Please let me know when you're done testing and if things are good.
> After that, I'll push everything assuming the code review goes well.
> You can also ignore this if you don't mind fixing your driver in
> the master branch later.

With our VMware driver there's a whole bunch of clipflat failures.  I'll 
try to see if it's something simple, otherwise, it may take a day or two 
to look closer.

-Brian