On Tue, Feb 9, 2016 at 11:20 AM, Karel Gardas <karel.gar...@centrum.cz> wrote:
> On 01/28/16 11:34 PM, Ben Gamari wrote: > >> Joachim Breitner <m...@joachim-breitner.de> writes: >> >> Hi Oleg, >>> >>> Am Freitag, den 29.01.2016, 00:22 +0200 schrieb Oleg Grenrus: >>> >>>> Is the same compiler used to build HEAD and 7.10,1? >>>> >>> >>> Good call. In fact, no: 7.10.1 is built with 7.6.3, while HEAD is built >>> with 7.10.3. >>> >>> Anthony’s link, i.e. >>> >>> https://perf.haskell.org/ghc/#compare/ca00def1d7093d6b5b2a937ddfc8a01c152038eb/a496f82d5684f3025a60877600e82f0b29736e85 >>> has links to the build logs of either build; there I could find that >>> information. >>> >>> That might be (part) of the problem. But if it is, it is even worse, as >>> it would mean not only building the compiler got slower, but the >>> compiler itself... >>> >>> I can verify that the build itself is indeed slower. Validating the >> current state of ghc-7.10 takes 19 minutes, whereas ghc-8.0 takes 25.5 >> minutes. This isn't entirely unexpected but the change is quite a bit >> larger than I had thought. It would be nice to know which commits are >> responsible. >> > > btw, just recent experience on ARM64 (X-gene board): > > bootstrapping 7.10.1 with 7.6.x took: ~120 minutes > bootstrapping 8.0.1 RC2 with 7.10.1 took: ~446 minutes > > both run as: ./configure; time make -j8 > It would be interesting to have the time for bootstrapping 7.10.1 with 7.10.1 too, for comparison. Regards, Reid Barton
_______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs