grit://cooking/bench/diff/worktree@synth-100k

grit diff · worktree @synth-100k

Unstaged worktree diff (~1% modified): grit diff vs git diff

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

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

tool	median	min	max	runs	peak memory
git	116 ms	111 ms	134 ms	17	29 MB
grit	69 ms	66 ms	85 ms	17	67 MB

grit is 1.7× fastermemory: 2.3× more

every timed run (log scale)

git

grit

53 ms169 ms

How it's measured

before each run

grit-bench prepare-worktree-diff --git git

git runs

$ git diff

grit runs

$ grit diff

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

git · median run 116 ms

index: preload

24 ms

index: do_read_index

5.3 ms

cache_tree: read

0.2 ms

diff: setup

0.0 ms

diff: write

0.0 ms

grit · median run 69 ms

grit.index.read

8.8 ms

grit.repository.open

0.2 ms

grit.config.load ×2

0.1 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	116 ms	69 ms	1.7× faster	67 MB
2026-10-26	c7cf2c443	199 ms	129 ms	1.5× faster	73 MB
2026-10-25	2824ad391	118 ms	83 ms	1.4× faster	68 MB
2026-10-24	157a05dde	116 ms	81 ms	1.4× faster	69 MB
2026-10-23	bddf92f86	118 ms	88 ms	1.3× faster	69 MB
2026-10-22	4c131b942	122 ms	154 ms	1.3× slower	74 MB
2026-10-21	d4844e92a	110 ms	157 ms	1.4× slower	67 MB
2026-10-20	4754ad0b9	131 ms	166 ms	1.3× slower	65 MB