[More Info] Increasing speed of D applications to Intel C compiled applicaitons' standards
J Duncan
jtd514 at nospam.ameritech.net
Fri Nov 10 12:05:38 PST 2006
%u wrote:
> "Do you have any observations about what shorts of things put you
> in the 20% category?"
>
> - Luckly the code requiring sheer processing power like math
> functions(trigs, logs...), b-tree creation, compression, D code
> runs only 5-6% slower (an averaged mean) compared to Intel C
> compiler.
> - Unfortunately, processes requiring sheer memory access like
> memcopy, mem alloc, de-alloc, stream copy is nearly almost 15->20%
> slower at D. (note that, code is totally identical).
>
> I'll post these results on my blog once I put them into a good
> graphed format so we can discuss it even further. with my limited
> knowledge on compilers, what i've seen is that intel c compiler
> has many ingenious optimisations. maybe there can be a way to put
> the same ideas into D compiler. (i hope)
so are we talking about a GC issue? I think it would be interesting to
use D for a front end to C . Then basically D code could be ran through
the Intel optimizer.
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