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

grit clone · blobless @git-git

Blobless partial clone over smart HTTP: grit clone --blobs none vs git clone --filter=blob:none

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

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

tool	median	min	max	runs	peak memory
git	8.71 s	8.70 s	8.81 s	5	71 MB
grit	7.23 s	7.20 s	7.28 s	5	63 MB

grit is 1.2× fastermemory: 1.1× less

every timed run (log scale)

git

grit

5.72 s11.09 s

How it's measured

setup

remote http://127.0.0.1:37755/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 --filter=blob:none http://127.0.0.1:37755/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 --blobs none http://127.0.0.1:37755/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 8.71 s

run: git remote-http ×2

8.48 s

run: git-remote-http ×2

8.48 s

run: git fetch-pack ×2

8.43 s

run: git index-pack ×2

4.11 s

unpack_trees: unpack_trees

2.54 s

run: git fetch.negotiationAlgorithm=noop

2.32 s

fetch: fetch_refs

2.30 s

fetch-pack: parse_remote_refs_and_find_cutoff ×2

13 ms

fetch: consume_refs

3.2 ms

unpack_trees: traverse_trees

3.1 ms

fetch-pack: mark_common_remote_refs ×2

1.9 ms

run: git maintenance

1.7 ms

cache_tree: update

1.5 ms

index: do_write_index

1.1 ms

fetch-pack: mark_complete_local_refs ×2

0.7 ms

cache_tree: write

0.0 ms

fetch-pack: negotiation_v0_v1 ×2

0.0 ms

grit · median run 7.23 s

grit.pack.index ×5

1.26 s

grit.pack.delta.resolve ×5

1.16 s

grit.checkout.write

94 ms

grit.checkout.plan

8.9 ms

grit.index.write

0.8 ms

grit.repository.open ×4

0.5 ms

grit.index.read ×2

0.4 ms

grit.config.load ×6

0.3 ms

grit.pack.index.open ×18

0.2 ms

Every day8 days

date	grit commit	git	grit	grit vs git	grit peak
2026-10-27	8dbc58e77	8.71 s	7.23 s	1.2× faster	63 MB
2026-10-26	c7cf2c443	12.15 s	9.56 s	1.3× faster	86 MB
2026-10-25	2824ad391	9.19 s	7.70 s	1.2× faster	85 MB
2026-10-24	157a05dde	8.87 s	8.20 s	1.1× faster	146 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	—	—