ci: fix benchmark comments

[mccutchen]

As discovered in #26 (comment), AFAICT changes to the benchmark workflow can't be tested till they're merged into master, due to restrictions on the workflow_dispatch event.

Here we make a couple of fixes and hope they work!

[github-actions]

🔥 Run benchmarks comparing ccf1295 against main:

gh workflow run bench.yaml -f pr_number=28

Note: this comment will update with each new commit.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.62%. Comparing base (9f05ba1) to head (ccf1295).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #28   +/-   ##
=======================================
  Coverage   79.62%   79.62%           
=======================================
  Files           3        3           
  Lines         432      432           
=======================================
  Hits          344      344           
  Misses         64       64           
  Partials       24       24           

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[github-actions]

benchstats: 9f05ba1...ccf1295

View full benchmark output on the workflow summary.

goos: linux
goarch: amd64
pkg: github.com/mccutchen/websocket
cpu: AMD EPYC 7763 64-Core Processor                
                       │ ./baseline/bench-results.txt │      ./head/bench-results.txt       │
                       │            sec/op            │   sec/op     vs base                │
ReadFrame/1KiB-4                          1.026µ ± 3%   1.032µ ± 1%        ~ (p=0.698 n=10)
ReadFrame/1MiB-4                          915.3µ ± 1%   913.9µ ± 0%        ~ (p=0.684 n=10)
ReadFrame/8MiB-4                          7.060m ± 1%   7.052m ± 0%        ~ (p=0.353 n=10)
ReadFrame/16MiB-4                         14.18m ± 0%   14.26m ± 0%   +0.51% (p=0.007 n=10)
ReadMessage/1MiB/1-4                      1.075m ± 1%   1.083m ± 1%   +0.74% (p=0.011 n=10)
ReadMessage/8MiB/1-4                      7.869m ± 1%   7.807m ± 1%   -0.79% (p=0.015 n=10)
ReadMessage/16MiB/1-4                     15.66m ± 1%   15.66m ± 1%        ~ (p=0.912 n=10)
ReadMessage/1MiB/4-4                      1.555m ± 2%   1.450m ± 1%   -6.74% (p=0.000 n=10)
ReadMessage/8MiB/4-4                      10.66m ± 2%   10.95m ± 4%        ~ (p=0.123 n=10)
ReadMessage/16MiB/4-4                     19.74m ± 1%   19.77m ± 3%        ~ (p=0.739 n=10)
ReadMessage/1MiB/16-4                     2.085m ± 4%   1.986m ± 1%   -4.76% (p=0.001 n=10)
ReadMessage/8MiB/16-4                     17.17m ± 3%   15.62m ± 3%   -9.03% (p=0.000 n=10)
ReadMessage/16MiB/16-4                    22.66m ± 3%   26.43m ± 6%  +16.65% (p=0.000 n=10)
geomean                                   3.173m        3.167m        -0.18%

                       │ ./baseline/bench-results.txt │       ./head/bench-results.txt        │
                       │             B/op             │     B/op      vs base                 │
ReadFrame/1KiB-4                         1.055Ki ± 0%   1.055Ki ± 0%       ~ (p=1.000 n=10) ¹
ReadFrame/1MiB-4                         1.000Mi ± 0%   1.000Mi ± 0%       ~ (p=0.934 n=10)
ReadFrame/8MiB-4                         8.000Mi ± 0%   8.000Mi ± 0%       ~ (p=0.056 n=10)
ReadFrame/16MiB-4                        16.00Mi ± 0%   16.00Mi ± 0%  +0.00% (p=0.009 n=10)
ReadMessage/1MiB/1-4                     1.000Mi ± 0%   1.000Mi ± 0%       ~ (p=1.000 n=10)
ReadMessage/8MiB/1-4                     8.000Mi ± 0%   8.000Mi ± 0%       ~ (p=0.356 n=10)
ReadMessage/16MiB/1-4                    16.00Mi ± 0%   16.00Mi ± 0%       ~ (p=0.565 n=10)
ReadMessage/1MiB/4-4                     3.602Mi ± 0%   3.602Mi ± 0%  +0.00% (p=0.000 n=10)
ReadMessage/8MiB/4-4                     28.57Mi ± 0%   28.57Mi ± 0%       ~ (p=0.158 n=10)
ReadMessage/16MiB/4-4                    57.09Mi ± 0%   57.09Mi ± 0%       ~ (p=0.836 n=10)
ReadMessage/1MiB/16-4                    5.407Mi ± 0%   5.407Mi ± 0%       ~ (p=0.730 n=10)
ReadMessage/8MiB/16-4                    47.22Mi ± 0%   47.22Mi ± 0%       ~ (p=0.986 n=10)
ReadMessage/16MiB/16-4                   93.81Mi ± 0%   93.81Mi ± 0%       ~ (p=0.137 n=10)
geomean                                  5.263Mi        5.263Mi       +0.00%
¹ all samples are equal

                       │ ./baseline/bench-results.txt │      ./head/bench-results.txt       │
                       │          allocs/op           │ allocs/op   vs base                 │
ReadFrame/1KiB-4                           5.000 ± 0%   5.000 ± 0%       ~ (p=1.000 n=10) ¹
ReadFrame/1MiB-4                           5.000 ± 0%   5.000 ± 0%       ~ (p=1.000 n=10) ¹
ReadFrame/8MiB-4                           5.000 ± 0%   5.000 ± 0%       ~ (p=1.000 n=10) ¹
ReadFrame/16MiB-4                          5.000 ± 0%   5.000 ± 0%       ~ (p=1.000 n=10) ¹
ReadMessage/1MiB/1-4                       6.000 ± 0%   6.000 ± 0%       ~ (p=1.000 n=10) ¹
ReadMessage/8MiB/1-4                       6.000 ± 0%   6.000 ± 0%       ~ (p=1.000 n=10) ¹
ReadMessage/16MiB/1-4                      6.000 ± 0%   6.000 ± 0%       ~ (p=1.000 n=10) ¹
ReadMessage/1MiB/4-4                       24.00 ± 0%   24.00 ± 0%       ~ (p=1.000 n=10) ¹
ReadMessage/8MiB/4-4                       24.00 ± 0%   24.00 ± 0%       ~ (p=1.000 n=10) ¹
ReadMessage/16MiB/4-4                      24.00 ± 0%   24.00 ± 0%       ~ (p=1.000 n=10) ¹
ReadMessage/1MiB/16-4                      90.00 ± 0%   90.00 ± 0%       ~ (p=1.000 n=10) ¹
ReadMessage/8MiB/16-4                      90.00 ± 0%   90.00 ± 0%       ~ (p=1.000 n=10) ¹
ReadMessage/16MiB/16-4                     90.00 ± 0%   90.00 ± 0%       ~ (p=1.000 n=10) ¹
geomean                                    14.59        14.59       +0.00%
¹ all samples are equal