Comment #2 by michal.minich — 2013-10-20T12:09:55Z
(In reply to comment #1)
> It looks a lot like a dup of
> http://d.puremagic.com/issues/show_bug.cgi?id=10866
>
> Michal can you re-test with beta 2 of dmd 2.064?
With dmd 2.064 beta 2
Approximate timings
28 seconds - dmd 2.063 + updated snn.lib
9 seconds - dmd 2.064 beta 2
So the build time is now 3 times faster the 2.063 and 6 times faster than beta 1! If that is not another bug it is incredible! My test was building single lib file ,about 11 mb, which is the same size as with 2.063. What enhancement(s) is causing this speedups?
Comment #3 by code — 2013-10-20T12:19:01Z
If you now use visual studio to build dmd 2.064 you should be down to 4 seconds.
Comment #4 by dmitry.olsh — 2013-10-20T12:21:30Z
(In reply to comment #2)
> (In reply to comment #1)
> > It looks a lot like a dup of
> > http://d.puremagic.com/issues/show_bug.cgi?id=10866
> >
> > Michal can you re-test with beta 2 of dmd 2.064?
>
> With dmd 2.064 beta 2
>
> Approximate timings
> 28 seconds - dmd 2.063 + updated snn.lib
> 9 seconds - dmd 2.064 beta 2
>
> So the build time is now 3 times faster the 2.063 and 6 times faster than beta
> 1! If that is not another bug it is incredible! My test was building single lib
> file ,about 11 mb, which is the same size as with 2.063. What enhancement(s) is
> causing this speedups?
Well there was some work on reducing interdependencies and a few steps taken to avoid parsing rarely used stuff in Phobos (specifically unicode tables).
Plus specifically for vibe.d there was this enhancement (unless you test with the old version):
https://github.com/rejectedsoftware/vibe.d/pull/341
Comment #5 by michal.minich — 2013-10-20T12:43:29Z
(In reply to comment #4)
> Plus specifically for vibe.d there was this enhancement (unless you test with
> the old version):
> https://github.com/rejectedsoftware/vibe.d/pull/341
Well there was some work on reducing interdependencies and a few steps taken to
avoid parsing rarely used stuff in Phobos (specifically unicode tables).
I was testing on latest release 0.7.17 - without the specific vibe.d enhancement; so the "some work" and "few steps" you are referring to seems to really pay off.
Comment #6 by dmitry.olsh — 2013-10-20T13:01:19Z
(In reply to comment #5)
> (In reply to comment #4)
>
> > Plus specifically for vibe.d there was this enhancement (unless you test with
> > the old version):
> > https://github.com/rejectedsoftware/vibe.d/pull/341
>
> Well there was some work on reducing interdependencies and a few steps taken to
> avoid parsing rarely used stuff in Phobos (specifically unicode tables).
>
> I was testing on latest release 0.7.17 - without the specific vibe.d
> enhancement; so the "some work" and "few steps" you are referring to seems to
> really pay off.
I bet the compiler fix invlved still _did_ reduce the time. The pull for vibe was more of a workaround.
Anyhow the time is back to "normal" so I'm closing this.