tree d1c5f878bd15dd9fef524ed0b8bf0afe61b7c839
parent d09788938b12729c37fe914c98e6aab7d93499d7
author Nigel Tao <nigeltao@golang.org> 1611386708 +1100
committer Nigel Tao <nigeltao@golang.org> 1611386708 +1100

Unroll some std/png fallback loops

wuffs_png_decode_filt_1_dist_3/clang9                     1.57GB/s ± 0%   1.84GB/s ± 0%  +16.85%  (p=0.008 n=5+5)
wuffs_png_decode_filt_3_dist_3/clang9                      909MB/s ± 0%   1153MB/s ± 0%  +26.92%  (p=0.008 n=5+5)

wuffs_png_decode_image_40k_24bpp/clang9                    127MB/s ± 0%    129MB/s ± 0%   +1.56%  (p=0.008 n=5+5)
wuffs_png_decode_image_4002k_24bpp/clang9                  128MB/s ± 0%    131MB/s ± 0%   +2.05%  (p=0.008 n=5+5)

wuffs_png_decode_filt_1_dist_3/gcc10                      1.84GB/s ± 0%   1.85GB/s ± 0%     ~     (p=0.095 n=5+5)
wuffs_png_decode_filt_3_dist_3/gcc10                      1.08GB/s ± 0%   1.14GB/s ± 1%   +5.87%  (p=0.008 n=5+5)

wuffs_png_decode_image_40k_24bpp/gcc10                     131MB/s ± 0%    132MB/s ± 0%   +0.46%  (p=0.008 n=5+5)
wuffs_png_decode_image_4002k_24bpp/gcc10                   131MB/s ± 0%    132MB/s ± 0%   +0.66%  (p=0.008 n=5+5)