"bzr tags -r NNN" runs forever

[Eli Zaretskii]

> Date: Wed, 21 Sep 2011 19:27:19 +0200
> From: Jelmer Vernooij <jelmer at samba.org>
> CC: bazaar at lists.canonical.com, Jelmer Vernooij <vernooi1 at xs4all.nl>
> 
> > Show the tag, if any, in the given revision or range of revisions.
> > But that's not based on anything, since the documentation doesn't tell
> > anything about the effect of this switch.
> That is indeed what it does, but it probably has to scan history in 
> order to find that data which can take some time.

If it takes 30 sec to find all the tags, how come it takes many
minutes (at least 12) to find tags for a single revision?

> Then again, 30s is also a very long time for "bzr tags" without
> arguments. Are you running this on a local or a remote branch?

It's a local bound branch, but it has a very large history (105K
revisions).