grit://cooking/bench/clone/shallow-depth1@synth-10k

grit clone · shallow-depth1 @synth-10k

Shallow clone over smart HTTP: grit clone --shallow vs git clone --depth 1

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 clone/shallow-depth1@synth-10k2026-10-27 · grit 8dbc58e77 · git version 2.43.0

tool	median	min	max	runs	peak memory
git	186 ms	183 ms	203 ms	8	31 MB
grit	186 ms	183 ms	203 ms	8	30 MB

grit is parmemory: same

every timed run (log scale)

git

grit

145 ms256 ms

How it's measured

setup

remote http://127.0.0.1:36883/remote.git served by git http-backend (git's own smart HTTP server)

before each run

grit-bench prepare-network-clone --git git --bare /tmp/grit-bench-scratch/daily-remote-synth-10k-clone/remote.git

git runs

$ rm -rf /tmp/grit-bench-scratch/daily-remote-synth-10k-clone/remote.git-campaign-clone && cd /tmp/grit-bench-scratch/daily-remote-synth-10k-clone && git clone --depth 1 -q http://127.0.0.1:36883/remote.git remote.git-campaign-clone

grit runs

$ rm -rf /tmp/grit-bench-scratch/daily-remote-synth-10k-clone/remote.git-campaign-clone && cd /tmp/grit-bench-scratch/daily-remote-synth-10k-clone && grit clone --shallow http://127.0.0.1:36883/remote.git remote.git-campaign-clone

checked first

before timing, git and grit were each run once and their results compared; the result is verified after every timed run

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

git · median run 186 ms

unpack_trees: unpack_trees

119 ms

run: git remote-http

63 ms

run: git-remote-http

62 ms

run: git fetch-pack

48 ms

run: git /tmp/grit-bench-scratch/daily-remote-synth-10k-clone/remote.git-campaign-clone/.git/shallow.lock

24 ms

run: git rev-list

4.7 ms

unpack_trees: traverse_trees

3.3 ms

cache_tree: update

2.3 ms

index: do_write_index

2.2 ms

fetch-pack: mark_common_remote_refs

0.6 ms

fetch-pack: parse_remote_refs_and_find_cutoff

0.5 ms

cache_tree: write

0.0 ms

fetch-pack: negotiation_v0_v1

0.0 ms

fetch-pack: mark_complete_local_refs

0.0 ms

grit · median run 186 ms

grit.pack.index

9.7 ms

grit.pack.delta.resolve

8.0 ms

grit.index.write

1.4 ms

grit.index.read ×2

0.7 ms

grit.repository.open ×3

0.3 ms

grit.config.load ×6

0.3 ms

grit.pack.index.open ×2

0.0 ms

Every day8 days

date	grit commit	git	grit	grit vs git	grit peak
2026-10-27	8dbc58e77	186 ms	186 ms	par	30 MB
2026-10-26	c7cf2c443	411 ms	390 ms	1.1× faster	27 MB
2026-10-25	2824ad391	216 ms	279 ms	1.3× slower	26 MB
2026-10-24	157a05dde	190 ms	220 ms	1.2× slower	27 MB
2026-10-23	bddf92f86	—	not run	—	—
2026-10-22	4c131b942	—	not run	—	—
2026-10-21	d4844e92a	—	not run	—	—
2026-10-20	4754ad0b9	—	not run	—	—