SVN/TortoiseSVN painfully slow

Question

I\'m experiencing painfully slow operations with one of our SVN repositories/projects.

For example, it\'s taking 5-10 minutes to revert the changes in one small file (10

Answer 1

I have some projects which use the Eclipse IDE. If you capture the Eclipse project directories you get hundreds and hundreds of tiny files which has the same effect for my project as you're suffering on yours.

I think that when you check files out SVN does so one at a time which means that projects with huge numbers of files are always going to be slow and there's not much you can do about it (aside from avoiding frequent whole-repository operations).

Making changes to a single file shouldn't be slow though.

You may try the suggestions in another post on Stack Overflow about slow SVN. It could also be due to using a BDB database.

Answer 2

SVN is slow if you use NFS (Network File System) for the working copy. This could be your problem.

Answer 3

There is a known issue with the use of the recycle bin with revert which causes slow reverting. Emptying your recycle bin and setting TortoiseSVN not to use it during revert operations both speed up this operation (see http://www.nabble.com/Revert-is-too-slow-td18222196.html).

This has definitely sped up my revert operations.

Answer 4

The Subversion working copy performs quite badly when there's a huge number of directories, like in your case. For write operations (even only locally) to the working copy, the working copy has to be locked, which means that a lock file is created in every directory (that's 11k file creates), then the action executes, and the those 11k files are deleted again.

Subversion 1.7 is moving to a different working copy format, that should resolve these problems. Until then there's a few tricks you might try to speed things up, like excluding the working copy from your virus scanner, disabling file monitors on the directory (like TortoiseSvnCache), and trying to reduce the total number of directories. (Perhaps by checking out a few separate working copies)

Answer 5

Reverting changes in SVN is a local operation which shouldn't go to the server at all. So it sounds as though the problem is in your working copy of the project.

Try running 'svn cleanup' in the working copy; you may also want to check if you have problems with the hard drive or filesystem.

Answer 6

I experienced extreme slowness with Subversion on Windows after changing my password. I had to delete all directories and files from %APPDATA%\Subversion\auth.

Now SVN is fast as a hare. My slowness occurred via both TortoiseSVN and the command line.