Today I noticed that I constantly had about 1-2KB/s incoming and outgoing network traffic. Looking into this, I found that most of the traffic was caused by IDEA's Subversion integration. Even though it was just sitting in the background, IDEA 9 caused more traffic than all other idle applications together (mail client, feed reader, browser, twitter client, chat client, etc.). As soon as I set Settings->Version Control to "none", the traffic stopped. What's going on here? Is IDEA constantly hammering the Subversion server (the remote address was googlecode.l.google.com)?