Junio C Hamano <gits...@pobox.com> writes: > Matthieu Moy <matthieu....@imag.fr> writes: > >> The algorithm to find a path from the local revision to the remote one >> was calling "git rev-list" and parsing its output N times. Run rev-list >> only once, and fill a hashtable with the result to optimize the body of >> the loop. > > Good thinking. I wonder if it would further reduce the overhead if > you stop using --children and do this using --parents instead, as > you will be reading the parsed_sha1..local range either way yourself > anyway.
It is possible, yes. I'll resend a version with --parents, but this probably doesn't change the performance much: what we really need is for Git to prune dead-ends in the subgraph, to make sure we find a path without having to backtrack (i.e. we need parent rewriting history simplification), so Git has to do something a bit clever anyway. -- Matthieu Moy http://www-verimag.imag.fr/~moy/ -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
