History operations are slow (Re: 'bzr branch -r -XXX foo bar' slow for long histories)

Teemu Likonen tlikonen at iki.fi
Sun Mar 16 20:15:39 GMT 2008

John Arbash Meinel wrote:

> I've been playing around with the emacs repo a bit. And I found that
> doing:
> bzr branch -r -100 trunk test
> Is actually pretty slow.

I've also been playing with bzr and emacs repository. Many history
operations seem very slow but "bzr missing" is the worst:

$ time bzr branch -r -2 trunk test

real    2m8.822s
user    1m59.767s
sys     0m2.828s

$ cd test
$ time bzr missing ../trunk
You are missing 1 revision(s):

real    15m52.620s
user    15m4.769s
sys     0m11.813s

Yes, almost 16 minutes.

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