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I've got MacBook Pro 2011, 15" i7 2GHz 8GB Ram 1333 MHz OS X Lion 10.7.2 all updates installed released to this date. I have done everything what I can to minimize RAM consumpsion and the only problem I've got at this point is when I run Xcode. I had 4gigs of RAM, than bought 8 gigs and always 've got 10-30 MB of free memory after 3-5 minutes of Xcode running and PAGE INS are 300MB - 700MB. I tried to switch to 32-bit running mode but no change. Can anybody help me please?
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Yes. One way is to disable indexing, another is to reduce the number of build processes. These are hidden preferences in Xcode 4 which I have detailed here:
Hidden Features of Xcode 4
I've also made a pretty extensive write up for improving and working with Xcode's resource issues:
Why are xcodebuild and Xcode 4.2 so slow?