I'm using a MBP with a quad core 2gHz Core i7; it has 8 overall hardware threads. GHC's build process using 'make -j9' or 'make -j12' totally saturates all my cores. I believe I can clock in a full build at well under 10 minutes (with BuildFlavor = quick in mk/build.mk.) For comparison, I also have a dual core 2gHz Core i7 (4 hardware threads) in a lenovo sitting next to it running Linux, and a full GHC build takes a bit longer. I can get real numbers later if it's actually that interesting.
I'd recommend you getting the quad-core machine, if at all possible. On Tue, Aug 23, 2011 at 4:27 AM, Johan Tibell <johan.tib...@gmail.com> wrote: > Hi! > > I'm looking to upgrade my laptop so that I can (among other things) > compile GHC faster. I'll either get the 13" 2.7GHz dual-core Intel > Core i7 model or the 15" 2.2GHz quad-core Intel Core i7 model. Anyone > know if it's worth to get the 15" model? According to these benchmarks > it should be quite a bit faster: > > http://www.primatelabs.ca/geekbench/mac-benchmarks/ > > but I don't know if I can get enough parallelism out of GHC's build to > use all 4 cores in the 15" model. > > -- Johan > > _______________________________________________ > Glasgow-haskell-users mailing list > Glasgow-haskell-users@haskell.org > http://www.haskell.org/mailman/listinfo/glasgow-haskell-users > -- Regards, Austin _______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users