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Re: Performance issues when setting dates from scripts

From: Andrew Thompson <subversionuser_at_aktzero.com>
Date: 2005-05-23 17:25:49 CEST

Jason Field wrote:
> I've recently been trying to export a VSS repository to Subversion using
> the PySvn bindings.

pysvn looks like a Python library for SVN. Are you saying that you're
using a python script that references pysvn to to export your VSS data?

Or are you're just using pysvn workbench as a user frontend to SVN?

> Everything seems to be working well, except for the
> massive decrease in performance that occurs if I set the script to
> change the date revision property of checkins. Does Subversion require
> that ascending revisions have ascending datestamps?

Are you saying that if you make two repositories, one including the old
dates and one excluding the old dates, the performance of the two
repositories are different? I would consider that very curious...

Wait... Does your "massive decrease in performance" occur during the
post-conversion usage of the SVN repository, or during the export of
data from VSS to SVN. If it's only during the export, I would consider
that a cost of doing business with Microsoft. It *should not* affect
everyday usage.

> I assumed that the
> date property was entirely independant of the revision number but
> perhaps I'm wrong! The performance drop off makes the repository
> unusable unfortunately, and yet it would be very handy to maintain the
> entire VSS structure including dates. Any ideas appreciated!

See recent threads on date ranges over the last few days for the
ramifications. (I can't recall if it was on users@ or dev@.)

Andrew Thompson
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Received on Mon May 23 17:27:57 2005

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