I'm running git-rev-list from git master in the form git rebase does: git-rev-list --no-merges --cherry-pick --pretty=oneline --abbrev-commit --abbrev=7 --reverse --left-right --topo-order FOO...BAR New gprof output (I compiled without -O2 to prevent function inlining and removed xecfg.flags = XDL_EMIT_FUNCNAMES): http://git.661346.n2.nabble.com/file/n5633988/gprof_-p.txt gprof -p http://git.661346.n2.nabble.com/file/n5633988/gprof_-q.txt gprof -q This thing takes ~3 minutes of cpu time. So, it takes ~3 minutes of cpu time and looks like all time is spent in xdl_cleanup_records. Repo info: 80GB, 200K revisions (~200 per working day), 500K files (15GB) in master working copy, running git-rev-list to rebase ~5 commits over ~800 commits that happened upstream. -- View this message in context: http://git.661346.n2.nabble.com/PATCH-hash-binary-sha1-into-patch-id-tp5419375p5633988.html Sent from the git mailing list archive at Nabble.com. -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html