> $ hyperfine --parameter-list branch main,use-prek \
--setup "git switch {branch}" \
--warmup 2  --runs 3 \
"prek run --all-files"
Benchmark 1: prek run --all-files (branch = main)
  Time (mean ± σ):      3.582 s ±  0.055 s    [User: 10.782 s, System: 1.475 s]
  Range (min … max):    3.541 s …  3.644 s    3 runs

Benchmark 2: prek run --all-files (branch = use-prek)
  Time (mean ± σ):      2.651 s ±  0.014 s    [User: 12.615 s, System: 1.714 s]
  Range (min … max):    2.638 s …  2.666 s    3 runs

Summary
  prek run --all-files (branch = use-prek) ran
    1.35 ± 0.02 times faster than prek run --all-files (branch = main)

> $ hyperfine 'prek run -a' 'pre-commit run --all-files' --runs 3 -i
Benchmark 1: prek run -a
  Time (mean ± σ):      2.680 s ±  0.047 s    [User: 12.638 s, System: 1.763 s]
  Range (min … max):    2.634 s …  2.729 s    3 runs

Benchmark 2: pre-commit run --all-files
  Time (mean ± σ):      4.522 s ±  0.103 s    [User: 13.003 s, System: 1.933 s]
  Range (min … max):    4.446 s …  4.639 s    3 runs

Summary
  prek run -a ran
    1.69 ± 0.05 times faster than pre-commit run --all-files