On Wed, Nov 7, 2018 at 11:55 PM Joakim via Digitalmars-d-announce <[email protected]> wrote: > > On Thursday, 8 November 2018 at 07:41:58 UTC, Manu wrote: > > On Wed, Nov 7, 2018 at 10:30 PM Joakim via > > Digitalmars-d-announce <[email protected]> > > wrote: > >> > >> On Thursday, 8 November 2018 at 04:16:44 UTC, Manu wrote: > >> > On Tue, Nov 6, 2018 at 10:05 AM Vladimir Panteleev via > >> > Digitalmars-d-announce > >> > <[email protected]> wrote: > >> >> [...] > >> > > >> > "Indeed, a clean build of DMD itself (about 170’000 lines of > >> > D and 120’000 lines of C/C++) takes no longer than 4 seconds > >> > to build on a rather average developer machine." > >> > > >> > ...what!? DMD takes me... (compiling) ... 1 minute 40 > >> > seconds to build! And because DMD does all-files-at-once > >> > compilation, rather than separate compilation for each > >> > source file, whenever you change just one line in one file, > >> > you incur that entire build time, every time, because it > >> > can't just rebuild the one source file that changed. You > >> > also can't do multi-processor builds with all-in-one build > >> > strategies. > >> > > >> > 4 seconds? That's just untrue. D is actually kinda slow > >> > these days... In my experience it's slower than modern C++ > >> > compilers by quite a lot. > >> > >> It sounds like you're not using "a rather average developer > >> machine" then, as there's no way DMD should be that slow to > >> build on a core i5 or better: > >> > >> https://forum.dlang.org/post/[email protected] > > > > I'm on an i7 with 8 threads and plenty of ram... although > > threads are useless, since DMD only uses one ;) > > Running Windows XP? ;) That does sound like Windows though, as I > do remember being surprised how long dmd took to build on Win7 > when I tried it 8-9 years back. I still don't think the toolchain > should be _that_ much slower than linux though. > > Btw, the extra cores are _not_ useless for the DMD backend, which > has always used separate compilation, whether written in C++ or D.
No, you're right, the backend builds in 2-3 seconds.
