I run Arch Linux on my PC. I compiled D programs using dmd-2.066 and used no compile arguments (dmd prog.d)You should try use some arguments -O -release -inline -noboundscheckand maybe try use gdc or ldc should help with performancecan you post your code in all languages somewhere? I like to try it onmy machine :)
Btw. try use C log function, maybe it would be faster: import core.stdc.math;