Logging periodical thread dumps is a built in feature of SmartSVN to track well reproducible, pervasive performance problems. To investigate a problem using periodical thread dumps, do the following:
smartsvn.properties(create this file if necessary) and add following line to enable the Debug menu:
log.txt.*files from the settings directory.
Now, if the slow operation is not locking the GUI (so you can still invoke menu items):
Otherwise, if the slow operation is blocking the GUI, perform these steps in the reverse order:
log.txt.*files from the settings directory as a zip or tar/gzip archive and send this archive, as well as a short description of how to reproduce the problem, to email@example.com.