DMD compilation speed

[Martin Krejcirik via Digitalmars-d]

It seems like every DMD release makes compilation slower. This 
time I see 10.8s vs 7.8s on my little project. I know this is 
generally least of concern, and D1's lighting-fast times are long 
gone, but since Walter often claims D's superior compilation 
speeds, maybe some profiling is in order ?