[Issue 11250] Compile time almost doubled

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=11250



--- Comment #4 from Dmitry Olshansky <dmitry.olsh at gmail.com> 2013-10-20 12:21:30 PDT ---
(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

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