On Wed, May 15, 2013 at 6:36 PM, Clark Gaebel
It's also useful to note that the disk cache might do a surprisingly good job at caching those .hi files for you. That, and a lot of people (like me!) use SSDs, where the parallel compilation takes the vast majority of time.
I'd be really excited to see parallel ghc --make.
By the way, totally unrelated, but why does cabal support -j when cabal-dev doesn't?
It helps to understand that they are made by different people and cabal-dev is "just" a wrapper around cabal. Out of curiosity I just tried 'cabal-dev install -j' and as far as I can tell right now it does support -j. Perhaps you need to install newer versions of cabal or cabal-dev? $ cabal-dev --version cabal-dev 0.9.1 built with Cabal 1.16.0 Jason