Why is mercurial's hg rebase so slow?
问题 The rebase extension to mercurial provides functionality similar to git's rebase . Letting the rebase execute takes something like 4 minutes (~240 s) for 100 commits. In my imagination this should be extremely fast, a few seconds at most, but clearly I'm missing something. What makes it take so long? Are the commits themselves just extremely expensive? 回答1: By default, rebase writes to the working copy, but you can configure it to run in-memory for better performance, and to allow it to run