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| author | Martin Storsjö <martin@martin.st> | 2022-04-20 11:21:28 +0300 |
|---|---|---|
| committer | Martin Storsjö <martin@martin.st> | 2022-04-22 10:49:46 +0300 |
| commit | 70db14376c206f0fdcbff11c17875f95885c73d9 (patch) | |
| tree | 23fa3490b6567882bfcc5fed34fbdb0477b1a6ed /.gitattributes | |
| parent | d1a44f261aad2da5d2d4172b3782ee1b6402c3dc (diff) | |
| download | ffmpeg-70db14376c206f0fdcbff11c17875f95885c73d9.tar.gz | |
swscale: aarch64: Optimize the final summation in the hscale routine
Before: Cortex A53 A72 A73 Graviton 2 Graviton 3
hscale_8_to_15_width8_neon: 8273.0 4602.5 4289.5 2429.7 1629.1
hscale_8_to_15_width16_neon: 12405.7 6803.0 6359.0 3549.0 2378.4
hscale_8_to_15_width32_neon: 21258.7 11491.7 11469.2 5797.2 3919.6
hscale_8_to_15_width40_neon: 25652.0 14173.7 12488.2 6893.5 4810.4
After:
hscale_8_to_15_width8_neon: 7633.0 3981.5 3350.2 1980.7 1261.1
hscale_8_to_15_width16_neon: 11666.7 5951.0 5512.0 3080.7 2131.4
hscale_8_to_15_width32_neon: 20900.7 10733.2 9481.7 5275.2 3862.1
hscale_8_to_15_width40_neon: 24826.0 13536.2 11502.0 6397.2 4731.9
Thus, this gives overall a 8-29% speedup for the smaller filter
sizes, around 1-8% for the larger filter sizes.
Inspired by a patch by Jonathan Swinney <jswinney@amazon.com>.
Signed-off-by: Martin Storsjö <martin@martin.st>
Diffstat (limited to '.gitattributes')
0 files changed, 0 insertions, 0 deletions