I would be very surprised if parsing is the bottle neck. In most cases, type checking and register allocations (could be quadratic) takes much more time. OCaml's type checking algorithms is very clever, almost linear in most practical use cases. On Sat, Jan 14, 2017 at 11:14 PM Richard Feldman < richard.t.feld...@gmail.com> wrote:
> I'm wondering why the Elm compiler is so slow at parsing if that is where > the slow-down is > > > Evan recently rewrote the parser to be much faster. > > You can try a preview binary > <https://groups.google.com/forum/#!searchin/elm-dev/parser%7Csort:relevance/elm-dev/c_BDwK5UXFs/zP9aRkMeEQAJ> > of the new version if you're curious. :) > > > I saw that over on elm-dev, but haven't tried it because compilation speed > isn't a problem for the Elm code I have written so far. The only reason I > brought it up is OvermindDL1's comment > <https://groups.google.com/d/msg/elm-discuss/Um7WIBTq9xU/JpNNGv1JAgAJ> that > compiling a Ocaml/BucketScript code (that presumably did the same thing as > the Elm code) took about 0.1 seconds as compared to 40 seconds with the Elm > compiler - a 400 times speed-up! We weren't given details of the code or > test conditions and whether one was an incremental compilation, but that > sounds quite serious and would affect the usability of Elm. If that data > is verifiable, a speed up of double or even quadruple doesn't begin to > touch the difference and should be investigated. > > > If only there were a binary posted somewhere, based on a compiler that had > just been rewritten to improve build times, so that someone could post a > benchmark instead of speculation! ;) > > -- > You received this message because you are subscribed to a topic in the > Google Groups "Elm Discuss" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/elm-discuss/Um7WIBTq9xU/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > elm-discuss+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Elm Discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to elm-discuss+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
