rts_dist_HC is where it builds the various versions of the RTS, right? I noticed a similar slowness building the RTS at ICFP on my MacBook Pro (macOS 10.12). I don't think my battery lasted long enough to get to stage 2.
I'm afraid I don't have any clue why it's gotten so slow, but you're not alone! I did notice that it seems to build many more variants of the RTS than before, but I haven't tried to build GHC in a long time. On Fri, Oct 26, 2018, at 14:32, Richard Eisenberg wrote: > Hi devs, > > I have a shiny, new iMac in my office. It's thus frustrating that it > takes my iMac longer to build GHC than my trusty 28-month-old laptop. > Building devel2 on a fresh checkout takes just about an hour. By > contrast, my laptop is done after 30 minutes of work (same build > settings). The laptop has a 2.8GHz Intel i7 running macOS 10.13.5; the > desktop has a 3.5GHz Intel i5 running macOS 10.13.6. Both bootstrapped > from the binary distro of GHC 8.6.1. > > Watching GHC build, everything is snappy enough during the stage-1 > build. But then, as soon as we start using GHC-produced executables, > things slow down. It's most noticeable in the rts_dist_HC phase, which > crawls. Stage 2 is pretty slow, too. > > So: is there anything anyone knows about recent Macs not liking locally > built executables? Or is there some local setting that I need to update? > The prepackaged GHC seems to work well, so that gives me hope that > someone knows what setting to tweak. > > Thanks! > Richard > _______________________________________________ > ghc-devs mailing list > ghc-devs@haskell.org > http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs _______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs