How to speedup xcode builds without any project modifications?

Question

Last version or XCode (3.2.1) is running very slow on OS X 10.6.

What kinds of tweaks can you do to your Mac in order to speedup Xcode build process.

Answer 1

I recall seeing someone recently whose Xcode speed issues were resolved by reinstalling Xcode.

If you do this, you might want to save your documentation downloads and restore them after reinstalling. It will save you from a long download. You can find the documentation files by going to Preferences / Documentation. Click the little "i" next to a Doc Set and then choose "reveal in finder" from the small window.