For large repositories 'git log --graph' can be slow, but for git v2.20+ it can be sped up.
$ time git lg git lg 13.34s user 0.87s system 84% cpu 16.845 total # True by default as of git v2.24 git config --global core.commitGraph true git config --global gc.writeCommitGraph true # Command added in git v2.20 git commit-graph write $ time git lg git lg 0.72s user 0.14s system 74% cpu 1.154 total
This is a speed up of ~18x, compared to the older versions.
The way this works is that the commit-graph
file stores the commit graph structure along with some extra metadata to
speed up graph in the