Timing results of generating the first 40 fibonacci numbers using Topaz Ruby, MRI 1.9.3-p374, Rubinius 2.x, Go 1.0.2, C w/ clang, and C w/ GCC.

clang.sh

$ cc -v
Apple clang version 4.1 (tags/Apple/clang-421.11.66) (based on LLVM 3.1svn)
Target: x86_64-apple-darwin12.2.1
Thread model: posix
$ time ./a.out 
n=0  1
n=1	1
n=2	1
n=3	2
n=4	3
n=5	5
n=6	8
n=7	13
n=8	21
n=9	34
n=10	55
n=11	89
n=12	144
n=13	233
n=14	377
n=15	610
n=16	987
n=17	1597
n=18	2584
n=19	4181
n=20	6765
n=21	10946
n=22	17711
n=23	28657
n=24	46368
n=25	75025
n=26	121393
n=27	196418
n=28	317811
n=29	514229
n=30	832040
n=31	1346269
n=32	2178309
n=33	3524578
n=34	5702887
n=35	9227465
n=36	14930352
n=37	24157817
n=38	39088169
n=39	63245986

real	0m0.741s
user	0m0.715s
sys	0m0.025s

fib.c

#include <stdio.h>

int fib(int n) {
  return n <= 2 ? 1 : fib(n-1) + fib(n-2);
}

int main(void) {
  int i;

  for(i = 0; i < 40; i++) {
    printf("n=%d\t%d\n", i, fib(i));
  }
}

fib.go

$ cat fib.go 
package main

import "fmt"

func fib(n int) int {
  if n <= 2 { return 1 }
  return fib(n-1) + fib(n-2)
}

func main() {
  for i := 0; i < 40; i++ {
    fmt.Printf("n=%d\t%d\n", i, fib(i))
  }
}

Fib.java

public class Fib {
  public static int fib(int n) {
    if(n <= 2) {
      return 1;
    } else {
      return fib(n-1) + fib(n-2);
    }
  }

  public static void main(String[] args) {
    for(int i = 0; i < 40; i++) {
      System.out.println("n="+i+"\t"+fib(i));
    }
  }
}

fib.rb

def fib(n)
  n <= 2 ? 1 : fib(n-1) + fib(n-2)
end

40.times do |i|
  puts "n=#{i}\t#{fib(i)}"
end

fib.scala

object Fib {
  def fib(n: Int) : Int = {
    if(n <= 2) 1 else fib(n-1) + fib(n-2)
  }

  def main(args: Array[String]) {
    for(i <- 1 to 40) {
      var n = fib(i)
      println("n=" + i + "\t" + n);
    }
  }
}

gcc-4.2.sh

$ /usr/bin/gcc-4.2 -v
Using built-in specs.
Target: i686-apple-darwin12
Configured with: /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_apple-gcc42/apple-gcc42/work/objroot/src/configure --disable-checking --prefix=/opt/local --mandir=/opt/local/share/man --enable-languages=c,c++,objc,obj-c++ --libexecdir=/opt/local/libexec/apple-gcc42 --libdir=/opt/local/lib/apple-gcc42 --includedir=/opt/local/include/apple-gcc42 --program-suffix=-apple-4.2 --with-system-zlib --disable-nls --with-slibdir=/usr/lib --build=x86_64-apple-darwin12 --enable-werror-always --program-prefix=i686-apple-darwin12- --host=x86_64-apple-darwin12 --target=i686-apple-darwin12 --with-gxx-include-dir=/usr/include/c++/4.2.1
Thread model: posix
gcc version 4.2.1 (Apple Inc. build 5666) (dot 3) (MacPorts apple-gcc42 5666.3_9)
$ time ./a.out 
n=0  1
n=1	1
n=2	1
n=3	2
n=4	3
n=5	5
n=6	8
n=7	13
n=8	21
n=9	34
n=10	55
n=11	89
n=12	144
n=13	233
n=14	377
n=15	610
n=16	987
n=17	1597
n=18	2584
n=19	4181
n=20	6765
n=21	10946
n=22	17711
n=23	28657
n=24	46368
n=25	75025
n=26	121393
n=27	196418
n=28	317811
n=29	514229
n=30	832040
n=31	1346269
n=32	2178309
n=33	3524578
n=34	5702887
n=35	9227465
n=36	14930352
n=37	24157817
n=38	39088169
n=39	63245986

real	0m0.935s
user	0m0.933s
sys	0m0.002s

go.sh

$ go version
go version go1.0.2
$ time ./fib 
n=0  1
n=1	1
n=2	1
n=3	2
n=4	3
n=5	5
n=6	8
n=7	13
n=8	21
n=9	34
n=10	55
n=11	89
n=12	144
n=13	233
n=14	377
n=15	610
n=16	987
n=17	1597
n=18	2584
n=19	4181
n=20	6765
n=21	10946
n=22	17711
n=23	28657
n=24	46368
n=25	75025
n=26	121393
n=27	196418
n=28	317811
n=29	514229
n=30	832040
n=31	1346269
n=32	2178309
n=33	3524578
n=34	5702887
n=35	9227465
n=36	14930352
n=37	24157817
n=38	39088169
n=39	63245986

real	0m0.816s
user	0m0.813s
sys	0m0.002s

java.sh

$ java -version
java version "1.6.0_43"
Java(TM) SE Runtime Environment (build 1.6.0_43-b01-447-11M4203)
Java HotSpot(TM) 64-Bit Server VM (build 20.14-b01-447, mixed mode)
$ time java Fib
n=0  1
n=1	1
n=2	1
n=3	2
n=4	3
n=5	5
n=6	8
n=7	13
n=8	21
n=9	34
n=10	55
n=11	89
n=12	144
n=13	233
n=14	377
n=15	610
n=16	987
n=17	1597
n=18	2584
n=19	4181
n=20	6765
n=21	10946
n=22	17711
n=23	28657
n=24	46368
n=25	75025
n=26	121393
n=27	196418
n=28	317811
n=29	514229
n=30	832040
n=31	1346269
n=32	2178309
n=33	3524578
n=34	5702887
n=35	9227465
n=36	14930352
n=37	24157817
n=38	39088169
n=39	63245986

real	0m0.582s
user	0m0.637s
sys	0m0.027s

rubinius-2.0.0.rc1.sh

$ ruby -v
rubinius 2.0.0.rc1 (1.8.7 release yyyy-mm-dd JI) [x86_64-apple-darwin12.2.1]
$ time ruby fib.rb 
n=0  1
n=1	1
n=2	1
n=3	2
n=4	3
n=5	5
n=6	8
n=7	13
n=8	21
n=9	34
n=10	55
n=11	89
n=12	144
n=13	233
n=14	377
n=15	610
n=16	987
n=17	1597
n=18	2584
n=19	4181
n=20	6765
n=21	10946
n=22	17711
n=23	28657
n=24	46368
n=25	75025
n=26	121393
n=27	196418
n=28	317811
n=29	514229
n=30	832040
n=31	1346269
n=32	2178309
n=33	3524578
n=34	5702887
n=35	9227465
n=36	14930352
n=37	24157817
n=38	39088169
n=39	63245986

real	0m8.922s
user	0m8.908s
sys	0m0.063s

ruby-1.9.3-p374.sh

$ ruby -v
ruby 1.9.3p374 (2013-01-15 revision 38858) [x86_64-darwin12.2.1]
$ time ruby fib.rb 
n=0  1
n=1	1
n=2	1
n=3	2
n=4	3
n=5	5
n=6	8
n=7	13
n=8	21
n=9	34
n=10	55
n=11	89
n=12	144
n=13	233
n=14	377
n=15	610
n=16	987
n=17	1597
n=18	2584
n=19	4181
n=20	6765
n=21	10946
n=22	17711
n=23	28657
n=24	46368
n=25	75025
n=26	121393
n=27	196418
n=28	317811
n=29	514229
n=30	832040
n=31	1346269
n=32	2178309
n=33	3524578
n=34	5702887
n=35	9227465
n=36	14930352
n=37	24157817
n=38	39088169
n=39	63245986

real	0m18.893s
user	0m18.842s
sys	0m0.043s

scala.sh

$ scala -version
Scala code runner version 2.10.1 -- Copyright 2002-2013, LAMP/EPFL
$ time scala Fib
n=0  1
n=1	1
n=2	1
n=3	2
n=4	3
n=5	5
n=6	8
n=7	13
n=8	21
n=9	34
n=10	55
n=11	89
n=12	144
n=13	233
n=14	377
n=15	610
n=16	987
n=17	1597
n=18	2584
n=19	4181
n=20	6765
n=21	10946
n=22	17711
n=23	28657
n=24	46368
n=25	75025
n=26	121393
n=27	196418
n=28	317811
n=29	514229
n=30	832040
n=31	1346269
n=32	2178309
n=33	3524578
n=34	5702887
n=35	9227465
n=36	14930352
n=37	24157817
n=38	39088169
n=39	63245986

real	0m0.773s
user	0m0.838s
sys	0m0.048s

topaz-ruby-1.9.3-p125.sh

$ bin/topaz -v
topaz (ruby-1.9.3p125) [x86_64-darwin]
$ time bin/topaz fib.rb 
n=0  1
n=1	1
n=2	1
n=3	2
n=4	3
n=5	5
n=6	8
n=7	13
n=8	21
n=9	34
n=10	55
n=11	89
n=12	144
n=13	233
n=14	377
n=15	610
n=16	987
n=17	1597
n=18	2584
n=19	4181
n=20	6765
n=21	10946
n=22	17711
n=23	28657
n=24	46368
n=25	75025
n=26	121393
n=27	196418
n=28	317811
n=29	514229
n=30	832040
n=31	1346269
n=32	2178309
n=33	3524578
n=34	5702887
n=35	9227465
n=36	14930352
n=37	24157817
n=38	39088169
n=39	63245986

real	0m7.514s
user	0m7.366s
sys	0m0.144s