grit://cooking/bench/clone/http@synth-10k

grit clone · http @synth-10k

Clone synth-10k over grit smart HTTP vs git clone

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/http@synth-10k2026-10-27 · grit 8dbc58e77 · git version 2.43.0

tool	median	min	max	runs	peak memory
git	771 ms	769 ms	775 ms	5	35 MB
grit	702 ms	691 ms	706 ms	5	32 MB

grit is 1.1× fastermemory: 1.1× less

every timed run (log scale)

git

grit

549 ms976 ms

How it's measured

setup

remote http://127.0.0.1:46029/fixture.git served by grit-http-server

before each run

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

git runs

$ rm -rf /tmp/grit-bench-scratch/daily-remote-synth-10k-http-clone/remote.git-campaign-clone && cd /tmp/grit-bench-scratch/daily-remote-synth-10k-http-clone && git clone -q http://127.0.0.1:46029/fixture.git remote.git-campaign-clone

grit runs

$ rm -rf /tmp/grit-bench-scratch/daily-remote-synth-10k-http-clone/remote.git-campaign-clone && cd /tmp/grit-bench-scratch/daily-remote-synth-10k-http-clone && grit clone  http://127.0.0.1:46029/fixture.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 771 ms

run: git remote-http

661 ms

run: git-remote-http

659 ms

run: git fetch-pack

642 ms

run: git index-pack

369 ms

unpack_trees: unpack_trees

124 ms

unpack_trees: traverse_trees

3.4 ms

cache_tree: update

2.5 ms

index: do_write_index

2.3 ms

run: git rev-list

1.5 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: mark_complete_local_refs

0.0 ms

fetch-pack: negotiation_v0_v1

0.0 ms

grit · median run 702 ms

grit.pack.index

137 ms

grit.pack.delta.resolve

121 ms

grit.index.write

1.2 ms

grit.index.read ×2

0.6 ms

grit.repository.open ×3

0.4 ms

grit.config.load ×5

0.2 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	771 ms	702 ms	1.1× faster	32 MB
2026-10-26	c7cf2c443	1.11 s	1.29 s	1.2× slower	32 MB
2026-10-25	2824ad391	885 ms	888 ms	par	28 MB
2026-10-24	157a05dde	797 ms	933 ms	1.2× slower	44 MB
2026-10-23	bddf92f86	1.07 s	1.30 s	1.2× slower	56 MB
2026-10-22	4c131b942	1.07 s	1.29 s	1.2× slower	56 MB
2026-10-21	d4844e92a	1.13 s	1.44 s	1.3× slower	55 MB
2026-10-20	4754ad0b9	1.96 s	2.36 s	1.2× slower	52 MB