grit://cooking/bench/add/modified@synth-10k

grit add · modified @synth-10k

Stage modified files vs git add -A

repo: 10,000-file synthetic repository; canonical cached shape, scenario variants documented by the runner · 10,000 files · 1,000 commits · 800 refs

$ grit-bench daily --only add/modified@synth-10k2026-10-27 · grit 8dbc58e77 · git version 2.43.0

tool	median	min	max	runs	peak memory
git	16 ms	16 ms	30 ms	20	12 MB
grit	11 ms	9.8 ms	28 ms	20	25 MB

grit is 1.5× fastermemory: 2.1× more

every timed run (log scale)

git

grit

7.7 ms37 ms

How it's measured

before each run

grit-bench prepare-worktree-add --git git

git runs

$ set -eu
if [ -s /tmp/grit-bench-scratch/daily-synth-10k/.grit-bench-worktree-paths ]; then
  tr '\n' '\0' < /tmp/grit-bench-scratch/daily-synth-10k/.grit-bench-worktree-paths | xargs -0 git add -- > /dev/null 2>&1
fi

grit runs

$ set -eu
if [ -s /tmp/grit-bench-scratch/daily-synth-10k/.grit-bench-worktree-paths ]; then
  tr '\n' '\0' < /tmp/grit-bench-scratch/daily-synth-10k/.grit-bench-worktree-paths | xargs -0 grit add -- > /dev/null 2>&1
fi

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

git · median run 16 ms

index: do_write_index

2.3 ms

index: preload

2.3 ms

index: do_read_index

0.5 ms

dir: read_directory

0.3 ms

index: name-hash-init

0.2 ms

cache_tree: read

0.0 ms

cache_tree: write

0.0 ms

grit · median run 11 ms

grit.index.write

2.3 ms

grit.index.read

0.8 ms

grit.repository.open

0.2 ms

grit.config.load ×2

0.1 ms

Every day8 days

date	grit commit	git	grit	grit vs git	grit peak
2026-10-27	8dbc58e77	16 ms	11 ms	1.5× faster	25 MB
2026-10-26	c7cf2c443	20 ms	19 ms	par	23 MB
2026-10-25	2824ad391	18 ms	13 ms	1.4× faster	23 MB
2026-10-24	157a05dde	18 ms	15 ms	1.2× faster	23 MB
2026-10-23	bddf92f86	18 ms	17 ms	par	22 MB
2026-10-22	4c131b942	18 ms	18 ms	par	21 MB
2026-10-21	d4844e92a	17 ms	18 ms	par	20 MB
2026-10-20	4754ad0b9	19 ms	405 ms	21× slower	22 MB