Excerpts from Jason Dagit's message of Fri Nov 13 02:25:06 +0100 2009: > On Thu, Nov 12, 2009 at 2:57 AM, Neil Mitchell <ndmitch...@gmail.com> wrote: > > > Hi, > > > > I'd really love a faster GHC! I spend hours every day waiting for GHC, > > so any improvements would be most welcome. > > > > Has anyone built a profiling enabled GHC to get data on where GHC spends > time during compilation? > > > > > I remember when developing Yhc on a really low powered computer, it > > had around 200 modules and loaded from scratch (with all the Prelude > > etc) in about 3 seconds on Hugs. ghc --make took about that long to > > start compiling the first file, and I think a complete compile was > > around 5 minutes. It's one of the main reasons I stuck with Hugs for > > so long. > > > > Running GHC in parallel with --make would be nice, but I find on > > Windows that the link time is the bottleneck for most projects. > > > > Yes, when GHC calls GNU ld, it can be very costly. In my experience, on a
I confirm that I also had this experience on Arch Linux, GNU ld was allocating Gigs of memory, however this is very hard to reproduce. Actually I've wrapped /usr/bin/ld with a timeout :) -- Nicolas Pouillard http://nicolaspouillard.fr _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe