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Bug? use-commit-times=yes causes big performance degradation

From: Norbert Unterberg <nepo_at_gmx.net>
Date: 2005-02-02 09:23:15 CET

Maybe my first mail got lost in hyperspace...

When turning on the use-commit-times setting, working copies which are
checked out after that become very slow on every status fetch.
Subversion does a full file compare for all files in the working copy.
What happens is that the files get the checkin time stamp, but the time
stamps stored in the .svn/entries files are the checkout times.
This only happens on checkout, updates seems to work correctly.
Using svn, Version 1.1.3 (r12730) on Windows XP SP2

Steps to reproduce:

1. Set the following registry key:

I assume that enabling the setting in the config file has the same
result, but this is what I did..

2. Checkout a small working copy:
    svn co
http://svn.collab.net/repos/tortoisesvn/trunk/src/TortoiseBlame blame

3. Run Sysinternal's FileMon Tool

4. svn st blame

As can be seen in FileMon, Subversion reads all files in the working
copy and compares them with the files in the text-base folder.

5. del /q blame\*.*
6. svn up blame

Now watch the output of FileMon again when executing the status command:

7. svn st blame

You can see that svn no longer reads all the file contents but only
reads the file status. Obviously the timestamps in the entries file have
been repaired.


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Received on Wed Feb 2 09:32:25 2005

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