> On Oct 26, 2018, at 5:02 PM, Carter Schonwald <carter.schonw...@gmail.com> > wrote: > > are you setting the intree gmp flag? and/or dont have gmp the library > installed? maybe your ghc is using integer simple!
Intriguing possibility. I haven't done anything to install gmp. I'm now at home, away from this machine, but I'll try this next week. I have a hunch you're right. Perhaps we should have a warning when this is the case? > > theory two: dont set -j greater than about 8 or perhaps 16? (some parts of > ghc are slower on too paralle a setup?) I'm at -j5, so this isn't the problem. > > you could also look at system monitor to see if your'e being IO bound or > memory or CPU bound I tried this earlier, and it looked like I wasn't CPU-bound. I suspected a slow SSD somehow (if that's even possible). But watching the build this morning showed me that stage 1 is snappy while later work isn't, so that made me doubt my earlier guess. And installing the 6GB of LaTeX wasn't unduly slow, either. > (possible failure siutation: the repo is under dropbox or something and > dropbox is eating your memory bandwidth trying to sync stuff?) Thanks for the idea, but I know to keep GHC away from Dropbox. :) I'll give 90% confidence on the gmp thing. Thanks! Richard _______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs