tree b85828dcf6111d138d17fc08ad93899d26f43157
parent e0ea1e3196ac0aac60eccd7670662049875d8b7b
author Caleb Spare <cespare@gmail.com> 1605845145 -0800
committer Caleb Spare <cespare@gmail.com> 1605905437 -0800

Allow Sum64String and (*Digest).WriteString to be inlined

Benchmarks:

name                  old time/op    new time/op    delta
Sum64String/4B-12       4.78ns ± 1%    3.57ns ± 4%  -25.27%  (p=0.000 n=8+10)
Sum64String/100B-12     14.5ns ± 1%    12.9ns ± 0%  -10.76%  (p=0.000 n=9+10)
Sum64String/4KB-12       229ns ± 0%     229ns ± 1%     ~     (p=0.395 n=7+10)
Sum64String/10MB-12      628µs ± 1%     630µs ± 2%     ~     (p=1.000 n=9+10)
DigestString/4B-12      11.4ns ± 1%     9.7ns ± 1%  -14.95%  (p=0.000 n=10+10)
DigestString/100B-12    23.6ns ± 1%    21.3ns ± 2%   -9.65%  (p=0.000 n=10+10)
DigestString/4KB-12      241ns ± 1%     239ns ± 0%   -0.67%  (p=0.001 n=10+7)
DigestString/10MB-12     627µs ± 1%     628µs ± 1%     ~     (p=0.631 n=10+10)

name                  old speed      new speed      delta
Sum64String/4B-12      837MB/s ± 1%  1124MB/s ± 2%  +34.42%  (p=0.000 n=10+9)
Sum64String/100B-12   6.88GB/s ± 2%  7.72GB/s ± 1%  +12.16%  (p=0.000 n=10+10)
Sum64String/4KB-12    17.5GB/s ± 0%  17.5GB/s ± 1%     ~     (p=0.408 n=8+10)
Sum64String/10MB-12   15.9GB/s ± 1%  15.9GB/s ± 2%     ~     (p=1.000 n=9+10)
DigestString/4B-12     350MB/s ± 1%   411MB/s ± 1%  +17.55%  (p=0.000 n=10+10)
DigestString/100B-12  4.23GB/s ± 1%  4.69GB/s ± 1%  +10.84%  (p=0.000 n=10+9)
DigestString/4KB-12   16.6GB/s ± 1%  16.7GB/s ± 0%   +0.67%  (p=0.001 n=10+8)
DigestString/10MB-12  16.0GB/s ± 1%  15.9GB/s ± 1%     ~     (p=0.631 n=10+10)

And with -tags purego:

name                  old time/op    new time/op    delta
Sum64String/4B-12       5.57ns ± 1%    4.22ns ± 1%  -24.14%  (p=0.000 n=10+9)
Sum64String/100B-12     16.0ns ± 1%    14.8ns ± 0%   -7.27%  (p=0.000 n=10+6)
Sum64String/4KB-12       327ns ± 2%     325ns ± 1%     ~     (p=0.050 n=10+10)
Sum64String/10MB-12      866µs ± 3%     856µs ± 0%   -1.05%  (p=0.002 n=9+8)
DigestString/4B-12      11.2ns ± 1%    10.0ns ± 1%  -10.90%  (p=0.000 n=10+9)
DigestString/100B-12    25.5ns ± 1%    22.8ns ± 0%  -10.62%  (p=0.000 n=10+9)
DigestString/4KB-12      342ns ± 1%     340ns ± 1%   -0.56%  (p=0.018 n=9+10)
DigestString/10MB-12     877µs ± 1%     878µs ± 2%     ~     (p=0.400 n=10+9)

name                  old speed      new speed      delta
Sum64String/4B-12      718MB/s ± 1%   947MB/s ± 1%  +31.82%  (p=0.000 n=10+9)
Sum64String/100B-12   6.26GB/s ± 1%  6.75GB/s ± 1%   +7.81%  (p=0.000 n=10+10)
Sum64String/4KB-12    12.2GB/s ± 2%  12.3GB/s ± 1%   +0.70%  (p=0.022 n=10+9)
Sum64String/10MB-12   11.6GB/s ± 3%  11.7GB/s ± 0%   +1.05%  (p=0.002 n=9+8)
DigestString/4B-12     357MB/s ± 1%   401MB/s ± 1%  +12.32%  (p=0.000 n=10+9)
DigestString/100B-12  3.93GB/s ± 1%  4.40GB/s ± 0%  +11.95%  (p=0.000 n=10+9)
DigestString/4KB-12   11.7GB/s ± 1%  11.8GB/s ± 1%   +0.68%  (p=0.011 n=10+10)
DigestString/10MB-12  11.4GB/s ± 1%  11.4GB/s ± 2%     ~     (p=0.400 n=10+9)