pantsbuild / pants / 23806493354

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github

perf: Port `frozendict` to rust (#22501)

Before:
```console
(pants@3.11) ➜  pants git:(839363c8c9) hyperfine -w 2 -r 10 './pants --no-dynamic-ui --no-pantsd dependencies ::'
Benchmark 1: ./pants --no-dynamic-ui --no-pantsd dependencies ::
  Time (mean ± σ):     21.010 s ±  0.201 s    [User: 21.579 s, System: 7.112 s]
  Range (min … max):   20.804 s … 21.366 s    10 runs
 ```
After:
```console
(pants@3.11) ➜ pants git:(add/port-frozen-dict) hyperfine -w 2 -r 10
'./pants --no-dynamic-ui --no-pantsd dependencies ::'
Benchmark 1: ./pants --no-dynamic-ui --no-pantsd dependencies ::
Time (mean ± σ): 20.436 s ± 0.095 s [User: 20.932 s, System: 7.101 s]
  Range (min … max):   20.332 s … 20.605 s    10 runs
```

~2.5% faster

15 of 19 new or added lines in 3 files covered. (78.95%)

91601 of 98596 relevant lines covered (92.91%)

3.73 hits per line