dmd makes D appear slow

[Martin Krejcirik via Digitalmars-d]

IMHO all what is needed is to update the download page with some 
description of deferences between the compilers, like:

dmd
   - reference compiler, Digital Mars backend
   - best for latest dlang features, fast compile times

gdc
   - GNU gcc backend based compiler
   - best for portability and compatibility with gnu tools

ldc
   - LLVM backend based compiler
   - best for optimized builds, best runtime speed

Note to benchmark users: please use ldc compiler with -inline -O 
-boundscheck=off (or whatever is correct for LDC) options for 
best results