cheap copies

I've had a thought on my mind for a long time, and I'm craving
resolution.

Whenever we make a branch or tag (svn cp URL URL), it seems to take a
disconcertingly long time for the commit to finish. I mean, it takes
*noticeably* longer than when I simply commit a few file
changes... like 10 seconds instead of 2 or 3.

Something seems to be interfering with our magic O(1) copies.

Maybe it's something within libsvn_fs, like walking the tree to make
every node immutable? Maybe the post-commit-hook script is doing a
full tree walk to discover it's a copy? There's an O(N) thing
happening somewhere, and I'm about a hair away from filing an issue.

Any thoughts?

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Received on Fri Nov 8 19:27:08 2002