[Mesa-dev] [PATCH] st/mesa: Don't use PIPE_USAGE_STREAM for GL_PIXEL_UNPACK_BUFFER_ARB

[Ilia Mirkin]

On Wed, Feb 4, 2015 at 11:45 PM, Michel Dänzer <michel at daenzer.net> wrote:
> On 05.02.2015 12:48, Ilia Mirkin wrote:
>> Is there a benchmark that demonstrates this? I'd like to test it out
>> with nouveau.
>
> Mesa demos src/tests/streaming_rect on Kaveri (radeonsi):
>
> Unpatched:  42 frames in  1.023 seconds = 41.056 FPS
> Patched:   615 frames in  1.000 seconds = 615.000 FPS

Hm, 260fps for me on a GF108 (nvc1) with or without the patch (with
vblank_mode=0 LIBGL_DRI3_DISABLE=1). I guess with nouveau you don't
get that uncacheable nonsense?