Do everything in Java…

[Dmitry Olshansky via Digitalmars-d]

08-Dec-2014 18:18, H. S. Teoh via Digitalmars-d пишет:
> On Mon, Dec 08, 2014 at 08:33:16AM +0000, Russel Winder via Digitalmars-d wrote:
> [...]
>> As with any of these situation the convoluted hardcoded for a specific
>> processor code, especially assembly language will always win. I don't
>> care about that, I care about the fastest comprehensible code that is
>> portable simply by compilation or execution. Based on this, Java does
>> well, so does some Groovy perhaps surprisingly, also Scala.  C++ does
>> well especially with TBB (though as an API it leaves a lot to be
>> desired). D is OK but only using ldc2 or gdc, dmd sucks.
> [...]
>
> Yeah, I find in my own experience that gdc -O3 tends to produce code
> that's consistently ~20% faster than dmd -O, especially in
> compute-intensive code.

And that's not nearly enough. Also both LDC & GDC often can't inline 
many functions from phobos due to separate compilation.

> The downside is that gdc usually lags behind dmd
> by one release, which, given the current rate of development in D, can
> be quite a big difference in feature set available.
>


-- 
Dmitry Olshansky