grit://cooking/bench/blame/file@git-git
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grit blame · file @git-git

Blame one tracked file vs git blame

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

$ grit-bench daily --only blame/file@git-git2026-10-27 · grit 8dbc58e77 · git version 2.43.0
toolmedianminmaxrunspeak memory
git289 ms282 ms307 ms6233 MB
grit245 ms243 ms260 ms6260 MB
grit is 1.2× fastermemory: 1.1× more
every timed run (log scale)
git
grit
193 ms386 ms
How it's measured
git runs
$ git blame --porcelain README.md
grit runs
$ grit blame README.md
Where the time goesone extra traced run per tool, outside the timed runs
git · median run 289 ms
index: do_read_index ×2
0.7 ms
diff: inexact
0.1 ms
unpack_trees: unpack_trees
0.1 ms
cache_tree: read ×2
0.1 ms
diff: setup
0.0 ms
unpack_trees: traverse_trees
0.0 ms
diff: cull ×2
0.0 ms
diff: basename
0.0 ms
diff: exact
0.0 ms
diff: write
0.0 ms
diff: dir
0.0 ms
grit · median run 245 ms
grit.repository.open
0.3 ms
grit.diff.tree
0.3 ms
grit.config.load ×2
0.1 ms
grit.pack.index.open
0.0 ms
Every day8 days
dategrit commitgitgritgrit vs gitgrit peak
2026-10-278dbc58e77289 ms245 ms1.2× faster260 MB
2026-10-26c7cf2c443312 ms307 mspar260 MB
2026-10-252824ad391279 ms257 ms1.1× faster260 MB
2026-10-24157a05dde294 ms266 ms1.1× faster260 MB
2026-10-23bddf92f86276 ms333 ms1.2× slower278 MB
2026-10-224c131b942280 ms345 ms1.2× slower278 MB
2026-10-21d4844e92a288 ms879 ms3.1× slower603 MB
2026-10-204754ad0b9288 ms810 ms2.8× slower598 MB