D looses in speed to Common Lisp

[anonymous via Digitalmars-d]

On Monday, 11 May 2015 at 21:15:33 UTC, Dzhon Smit wrote:
> Tests on my machine:
> [code]$ time ./fib
> 0
>
> real    0m6.458s
> user    0m2.250s
> sys     0m0.933s
> $ time sbcl --dynamic-space-size 4GB --script fib.lisp
> 0
>
> real    0m1.884s
> user    0m1.290s
> sys     0m0.260s[/code]

Can't confirm that. Times for me (linux x86_64):

----
$ dmd fib.d && time ./fib
0

real    0m2.410s
user    0m1.844s
sys     0m0.558s

$ time sbcl --dynamic-space-size 4GB --script fib.lisp
0

real    0m2.659s
user    0m2.144s
sys     0m0.506s
----

As usual, ldc produces a faster binary than dmd:

----
$ ldc2 fib.d && time ./fib
0

real    0m1.900s
user    0m1.396s
sys     0m0.499s
----

Optimization flags don't seem to matter much for this program.