Hi, I have observed extremly low x11perf-putimagexy10 results when using glamor on top of the i965 driver - while shmput10 results are quite ok. First I thought this was limited to intel haswell, but my old arrandale system is affected as well:
x11perf -putimagexy10: 1200 reps @ 6.1682 msec ( 162.0/sec): PutImage XY 10x10 square x11perf -shmput10: 1200000 reps @ 0.0046 msec (217000.0/sec): ShmPutImage 10x10 square At least on arrandale, about 90% of cycles are spent in clflush_object - so GEM memory domain overhead. I wonder what could be the reason, last time I had a look at glamor both code-paths used the same glTexSubImage2D routine to upload the texture data, Br, Clemens PS: I've reported a bug a few months ago: https://bugs.freedesktop.org/show_bug.cgi?id=98549 _______________________________________________ [email protected]: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: https://lists.x.org/mailman/listinfo/xorg-devel
