AVX2 improvements are content specific
When ran a few test for issue #101 (closed), I noticed very little improvement between build 5cf1cf1f and aeb5a5ef, instead of the 3x speed-up with Chimera. When I tested on the first 4 video's of the Youtube AV1 Beta Launch Playlist, only one of the 4 video's was actually faster. Processed results
Build date | Build | 1 | 2 | 3 | 4 | Average | Normalized |
---|---|---|---|---|---|---|---|
2018-09-30 | 1c9c2534 | 88,8 | 37,3 | 78,8 | 89,2 | 73,5 | 100,0% |
2018-10-23 | 5cf1cf1f | 144,2 | 46,1 | 111,0 | 122,0 | 105,8 | 143,9% |
2018-10-30 | 8cef1efc | 144,4 | 123,7 | 109,0 | 122,4 | 124,9 | 169,8% |
dav1d -i C:\AV1beta\AV1beta1.ivf -o NUL.y4m --framethreads 8 --tilethreads 2
Hardware: HP ZBook 15 G2 (Core i7-4710MQ, 8GB DDR3)
Software: Windows 10 64-bit (1809)