How to disable indexing in Xcode 4?
Open a terminal window and paste this command:
defaults write com.apple.dt.XCode IDEIndexDisable 1You'll lose some features (autocomplete, jump to definition, some of the assistants won't work right). But you'll gain back ram and cpu.
For my project Xcode went from using 2 Gigs to a few hundred MB. (which I sorely needed to compile with ;))
This problem has been noticed on this newsgroup:
The crux of it seems to be that XCode4 uses crazy amounts of ram during indexing - like, 5gb or so(!), and thus if you're on a machine with something like 12gb, there's no problem, but if you're on a laptop with only 2gb or so, you'll have some pretty severe paging going on.
I'm guessing apple's internal engineers were all rocking maxed-out mac pros or something.