grit://cooking/bench/clone/shallow@git-git

grit clone · shallow @git-git

Shallow clone (`--depth 1`) over smart HTTP vs git clone --depth 1

repo: Upstream git/git pinned at v2.47.0, full history · 4,525 files · 75,031 commits · 954 refs

$ grit-bench daily --only clone/shallow@git-git2026-10-27 · grit 8dbc58e77 · git version 2.43.0

tool	median	min	max	runs	peak memory
git	1.57 s	1.56 s	1.58 s	5	38 MB
grit	1.64 s	1.63 s	1.67 s	5	53 MB

grit is parmemory: 1.4× more

every timed run (log scale)

git

grit

1.24 s2.11 s

How it's measured

setup

remote http://127.0.0.1:37953/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-git-git/remote.git

git runs

$ rm -rf /tmp/grit-bench-scratch/daily-remote-git-git/remote.git-campaign-clone && cd /tmp/grit-bench-scratch/daily-remote-git-git && git clone -q --depth 1 http://127.0.0.1:37953/remote.git remote.git-campaign-clone

grit runs

$ rm -rf /tmp/grit-bench-scratch/daily-remote-git-git/remote.git-campaign-clone && cd /tmp/grit-bench-scratch/daily-remote-git-git && grit clone --depth 1 http://127.0.0.1:37953/remote.git remote.git-campaign-clone

checked first

before timing, git and grit were each run once and their results compared

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

git · median run 1.57 s

run: git remote-http

1.33 s

run: git-remote-http

1.33 s

run: git fetch-pack

1.32 s

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

916 ms

unpack_trees: unpack_trees

210 ms

run: git rev-list

3.2 ms

unpack_trees: traverse_trees

2.6 ms

fetch-pack: mark_common_remote_refs

1.3 ms

cache_tree: update

1.2 ms

index: do_write_index

1.1 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 1.64 s

grit.checkout.write

93 ms

grit.pack.index

89 ms

grit.pack.delta.resolve

81 ms

grit.checkout.plan

8.9 ms

grit.index.write

0.7 ms

grit.index.read ×2

0.5 ms

grit.repository.open ×3

0.3 ms

grit.config.load ×6

0.3 ms

grit.pack.index.open ×3

0.0 ms

Every day8 days

date	grit commit	git	grit	grit vs git	grit peak
2026-10-27	8dbc58e77	1.57 s	1.64 s	par	53 MB
2026-10-26	c7cf2c443	—	fail	—	—
2026-10-25	2824ad391	—	fail	—	—
2026-10-24	157a05dde	—	fail	—	—
2026-10-23	bddf92f86	—	fail	—	—
2026-10-22	4c131b942	—	not run	—	—
2026-10-21	d4844e92a	—	not run	—	—
2026-10-20	4754ad0b9	—	not run	—	—