Xcode 4 Speed Boost

If Xcode 4 starts slowing down while working on a project, you should delete the project.xcworkspace file within your project’s .xcodeproj package. Xcode 4 had become so slow that the beach ball was appearing even when just editing text. After deleting the project.xcworkspace file Xcode’s speed and memory usage improved drastically.

I don’t know why I didn’t Google this before. The beach ball was killing my productivity.