When syncing a lot of folders that have svn information, SyncToy goes crazy. For every \.svn\entries folder it takes about three seconds, both cpu cores go to 100% and so eventually does memory usage. At some point this causes SyncToy to abort with an 'out of memory' message. Is this a known problem?
On a related note, it seems to me that it must be possible to optimize the 'echo' action a lot. After all, it just means 'backup'. But I can see that, even when complete folders were deleted on the source, SyncToy will wander through all files and subfolders on the target, deleting them one by one..