[More Info] Increasing speed of D applications to Intel C compiled applicaitons' standards
Sean Kelly
sean at f4.ca
Fri Nov 10 11:06:29 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).
Some of this may be related to DMC's C library implementation vs.
Intel's. Could you try the app using DMC and compare it to DMD?
Sean
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