Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

My entire machine OSX Lion machine slows down while XCode 4.4 is indexing. The CPU is less than 10% busy, I've got over 500 MB free memory, plenty of disk space, disk IO rate is not high, network activity is not high. Indexing just a few files can take minutes and builds are extremely slow. While this is going on, even loading a new web page in Chrome can be slow.

Knowing how to fix it would be great, but more fundamentally how can I measure what is actually going slowly? What metrics should I be looking at? Nothing in Activity Monitor, iostat, top, or sar betray anything about what's going on to me. Even getting a man page is interminable.

share|improve this question
    
To blindly fix this I've tried deleting "DerivedData", running fsck, disabling "on access scan" in McAfee, and installing Mountain Lion. – Ben Flynn Sep 6 '12 at 23:49
    
Oddly, the machine seems happier now. After installing Mountain Lion an error was reported on TimeMachine and I had to select a new volume on my USB TimeMachine drive. Perhaps that was the issue. – Ben Flynn Sep 7 '12 at 1:07
    
Additionally, I had a file that had been deleted from the file system but not from subversion, and it seem to give Xcode fits. Doing a svn delete seemed to help. – Ben Flynn Sep 13 '12 at 20:25

You must log in to answer this question.

Browse other questions tagged .