grit://cooking/bench/commit/small@synth-100k

grit commit · small @synth-100k

Commit after staging ~1% paths: grit commit bench vs git add+commit

repo: 100,000-file synthetic repository; canonical cached shape · 100,000 files · 1,000 commits · 1,200 refs

$ grit-bench daily --only commit/small@synth-100k2026-10-27 · grit 8dbc58e77 · git version 2.43.0

tool	median	min	max	runs	peak memory
git	896 ms	888 ms	937 ms	5	37 MB
grit	143 ms	134 ms	171 ms	5	48 MB

grit is 6.3× fastermemory: 1.3× more

every timed run (log scale)

git

grit

107 ms1.18 s

How it's measured

before each run

grit-bench prepare-worktree-commit --git git

git runs

$ set -eu
set -eu
if [ -s /tmp/grit-bench-scratch/daily-synth-100k/.grit-bench-worktree-paths ]; then
  tr '\n' '\0' < /tmp/grit-bench-scratch/daily-synth-100k/.grit-bench-worktree-paths | xargs -0 git add -- > /dev/null 2>&1
fi
git commit -q -m bench

grit runs

$ grit commit bench

Where the time goesone extra traced run per tool, outside the timed runs

git · median run 896 ms

index: preload ×3

155 ms

index: do_write_index ×2

45 ms

index: do_read_index ×2

11 ms

dir: read_directory

9.9 ms

index: name-hash-init

5.1 ms

cache_tree: update ×2

2.3 ms

run: git maintenance

1.8 ms

index: refresh

1.7 ms

unpack_trees: unpack_trees

0.8 ms

cache_tree: read ×2

0.3 ms

cache_tree: write ×2

0.2 ms

unpack_trees: traverse_trees

0.2 ms

diff: setup

0.0 ms

diff: write

0.0 ms

grit · median run 143 ms

grit.index.write ×2

57 ms

grit.index.read

7.4 ms

grit.diff.tree

0.5 ms

grit.repository.open ×2

0.4 ms

grit.config.load ×4

0.2 ms

grit.pack.index.open

0.0 ms

Every day8 days

date	grit commit	git	grit	grit vs git	grit peak
2026-10-27	8dbc58e77	896 ms	143 ms	6.3× faster	48 MB
2026-10-26	c7cf2c443	953 ms	262 ms	3.6× faster	68 MB
2026-10-25	2824ad391	1.04 s	175 ms	6.0× faster	46 MB
2026-10-24	157a05dde	951 ms	296 ms	3.2× faster	44 MB
2026-10-23	bddf92f86	1.00 s	335 ms	3.0× faster	44 MB
2026-10-22	4c131b942	951 ms	327 ms	2.9× faster	43 MB
2026-10-21	d4844e92a	914 ms	392 ms	2.3× faster	47 MB
2026-10-20	4754ad0b9	944 ms	430 ms	2.2× faster	55 MB