grit://cooking/bench/merge-base/branches@git-git
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grit merge-base · branches @git-git

Merge base of two branches: grit merge-base <a> <b> vs git merge-base <a> <b>

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

$ grit-bench daily --only merge-base/branches@git-git2026-10-27 · grit 8dbc58e77 · git version 2.43.0
toolmedianminmaxrunspeak memory
git15 ms15 ms16 ms8019 MB
grit3.9 ms3.5 ms4.3 ms8023 MB
grit is 3.9× fastermemory: 1.2× more
every timed run (log scale)
git
grit
2.8 ms20 ms
How it's measured
git runs
$ git merge-base v2.46.0 v2.47.0
grit runs
$ grit merge-base v2.46.0 v2.47.0
Where the time goesone extra traced run per tool, outside the timed runs
git
— not traced
grit · median run 3.9 ms
grit.repository.open
0.2 ms
grit.config.load ×2
0.1 ms
grit.pack.index.open
0.0 ms
Every day8 days
dategrit commitgitgritgrit vs gitgrit peak
2026-10-278dbc58e7715 ms3.9 ms3.9× faster23 MB
2026-10-26c7cf2c44325 ms5.1 ms5.0× faster22 MB
2026-10-252824ad39116 ms4.0 ms3.9× faster23 MB
2026-10-24157a05dde16 ms4.4 ms3.6× faster23 MB
2026-10-23bddf92f8616 ms5.4 ms3.0× faster23 MB
2026-10-224c131b94216 ms5.5 ms2.9× faster24 MB
2026-10-21d4844e92a16 ms168 ms11× slower58 MB
2026-10-204754ad0b917 ms321 ms18× slower57 MB