DMD compilation speed

[Martin Krejcirik via Digitalmars-d]

Here is one example:

Orange d5b2e0127c67f50bd885ee43a7dd61dd418b1661
https://github.com/jacob-carlborg/orange.git
make

2.065.0
real    0m9.028s
user    0m7.972s
sys     0m0.940s

2.066.1
real    0m10.796s
user    0m9.629s
sys     0m1.056s

2.067.0
real    0m13.543s
user    0m12.097s
sys     0m1.348s