On 2018-07-12 07:26 AM, Marek Olšák wrote: > > The maximum glxgears FPS improves as follows. > > Initially: 13285 > 8 patches: 14403 (+8.4% vs initial) > + patch 9: 15498 (+16.6% vs initial)
Those are nice numbers, but I'm afraid they're almost meaningless without more information about how you obtained them: I ran glxgears three times on my development machine (Tonga, Ryzen 7) and let it print 10 lines of output each, see below. Observations: The maximum FPS varied between 8921 in the first run and 8519 in the second run, almost 5% difference. The average FPS varied between 8825 in the first run and 8390 in the second run, that's even slightly more than 5% difference. In summary, the variance I'm seeing between runs is almost as large as each of the two deltas in your numbers above. In order to get more confidence about the numbers, my suggestion would be to compare the average FPS instead of the maximum one (e.g. just adding up the numbers of frames from the first n lines of output of each run), and to do enough runs for the numbers to be statistically significant, e.g. using something like ministat (just put the total numbers of frames of each run on a separate line in a text file, one file for each test point, then feed the files to ministat, and it shows you the interval between the maximum/minimum difference between the test points at 95% confidence). (BTW, it's perfectly possible that this would result in even better numbers :) 1st run: 43508 frames in 5.0 seconds = 8701.432 FPS 44382 frames in 5.0 seconds = 8876.267 FPS 44473 frames in 5.0 seconds = 8894.457 FPS 44531 frames in 5.0 seconds = 8906.013 FPS 43774 frames in 5.0 seconds = 8754.668 FPS 42578 frames in 5.0 seconds = 8515.556 FPS 44379 frames in 5.0 seconds = 8875.649 FPS 44451 frames in 5.0 seconds = 8890.145 FPS 44572 frames in 5.0 seconds = 8914.330 FPS 44606 frames in 5.0 seconds = 8921.109 FPS 2nd run: 41095 frames in 5.0 seconds = 8218.930 FPS 42218 frames in 5.0 seconds = 8443.552 FPS 42561 frames in 5.0 seconds = 8512.142 FPS 42319 frames in 5.0 seconds = 8463.651 FPS 41450 frames in 5.0 seconds = 8289.875 FPS 41085 frames in 5.0 seconds = 8216.868 FPS 42593 frames in 5.0 seconds = 8518.580 FPS 42055 frames in 5.0 seconds = 8410.791 FPS 41651 frames in 5.0 seconds = 8330.172 FPS 42491 frames in 5.0 seconds = 8498.198 FPS 3rd run: 40701 frames in 5.0 seconds = 8140.039 FPS 41932 frames in 5.0 seconds = 8386.246 FPS 43277 frames in 5.0 seconds = 8655.284 FPS 44076 frames in 5.0 seconds = 8815.146 FPS 43535 frames in 5.0 seconds = 8706.958 FPS 42281 frames in 5.0 seconds = 8456.143 FPS 42347 frames in 5.0 seconds = 8469.265 FPS 40415 frames in 5.0 seconds = 8082.880 FPS 41142 frames in 5.0 seconds = 8228.342 FPS 40379 frames in 5.0 seconds = 8075.758 FPS -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
