Fibonacci

gcc-4.4.real -o Fibonacci fibonacci.c
real	0m17.046s
user	0m14.749s
sys	0m0.007s

gcc-4.4.real -Os -o Fibonacci fibonacci.c
real	0m8.880s
user	0m7.613s
sys	0m0.000s

gcc-4.4.real -O1 -o Fibonacci fibonacci.c
real	0m15.310s
user	0m13.409s
sys	0m0.007s

gcc-4.4.real -O2 -o Fibonacci fibonacci.c
real	0m8.605s
user	0m7.503s
sys	0m0.007s

gcc-4.4.real -O3 -o Fibonacci fibonacci.c
real	0m6.580s
user	0m5.743s
sys	0m0.000s

-> Com -march=native

gcc-4.4.real -march=native -o Fibonacci fibonacci.c
real	0m17.273s
user	0m15.106s
sys	0m0.000s

gcc-4.4.real -march=native -Os -o Fibonacci fibonacci.c
real	0m8.689s
user	0m7.623s
sys	0m0.000s

gcc-4.4.real -march=native -O1 -o Fibonacci fibonacci.c
real	0m15.095s
user	0m13.282s
sys	0m0.010s

gcc-4.4.real -march=native -O2 -o Fibonacci fibonacci.c
real	0m8.457s
user	0m7.366s
sys	0m0.010s

gcc-4.4.real -march=native -O3 -o Fibonacci fibonacci.c
real	0m6.766s
user	0m5.910s
sys	0m0.007s

-> Com -pipe

gcc-4.4.real -pipe -o Fibonacci fibonacci.c
real	0m17.352s
user	0m14.772s
sys	0m0.013s

gcc-4.4.real -Os -pipe -o Fibonacci fibonacci.c
real	0m8.687s
user	0m7.613s
sys	0m0.007s

gcc-4.4.real -O1 -pipe -o Fibonacci fibonacci.c
real	0m15.407s
user	0m13.389s
sys	0m0.007s

gcc-4.4.real -O2 -pipe -o Fibonacci fibonacci.c
real	0m8.551s
user	0m7.510s
sys	0m0.000s

gcc-4.4.real -O3 -pipe -o Fibonacci fibonacci.c
real	0m6.685s
user	0m5.723s
sys	0m0.007s

-> Com -march=native e -pipe

gcc-4.4.real -march=native -pipe -o Fibonacci fibonacci.c
real	0m17.234s
user	0m15.106s
sys	0m0.007s

gcc-4.4.real -march=native -Os -pipe -o Fibonacci fibonacci.c
real	0m8.979s
user	0m7.653s
sys	0m0.000s

gcc-4.4.real -march=native -O1 -pipe -o Fibonacci fibonacci.c
real	0m15.157s
user	0m13.296s
sys	0m0.007s

gcc-4.4.real -march=native -O2 -pipe -o Fibonacci fibonacci.c
real	0m8.792s
user	0m7.390s
sys	0m0.013s

gcc-4.4.real -march=native -O3 -pipe -o Fibonacci fibonacci.c
real	0m6.936s
user	0m5.940s
sys	0m0.000s

-> Saida do GCC (Tutorial de compilação do Galactus)

gcc-4.4.real -march=nocona -O2 -pipe -mtune=nocona -mcx16 -msahf --param l1-cache-size=16 --param l1-cache-line-size=64 --param l2-cache-size=256 -o Fibonacci fibonacci.c
real	0m8.629s
user	0m7.406s
sys	0m0.000s

gcc-4.4.real -march=native -O2 -pipe -mtune=generic -mcx16 -msahf --param l1-cache-size=16 --param l1-cache-line-size=64 --param l2-cache-size=256 -o Fibonacci fibonacci.c
real	0m8.805s
user	0m7.513s
sys	0m0.007s

gcc-4.4.real -march=native -O2 -pipe -mtune=native -mcx16 -msahf --param l1-cache-size=16 --param l1-cache-line-size=64 --param l2-cache-size=256 -o Fibonacci fibonacci.c
real	0m8.840s
user	0m7.360s
sys	0m0.013s

-----

gcc-4.4.real -march=native -O3 -pipe -mtune=generic -mcx16 -msahf --param l1-cache-size=16 --param l1-cache-line-size=64 --param l2-cache-size=256 -o Fibonacci fibonacci.c
real	0m6.871s
user	0m5.746s
sys	0m0.000s

gcc-4.4.real -march=nocona -O3 -pipe -mtune=nocona -mcx16 -msahf --param l1-cache-size=16 --param l1-cache-line-size=64 --param l2-cache-size=256 -o Fibonacci fibonacci.c
real	0m6.878s
user	0m5.903s
sys	0m0.007s

gcc-4.4.real -march=native -O3 -pipe -mtune=native -mcx16 -msahf --param l1-cache-size=16 --param l1-cache-line-size=64 --param l2-cache-size=256 -o Fibonacci fibonacci.c
real	0m6.970s
user	0m5.886s
sys	0m0.010s

-> Flags do Gentoo

gcc-4.4.real -march=nocona -O2 -pipe -o Fibonacci fibonacci.c
real	0m8.743s
user	0m7.376s
sys	0m0.007s

-> Melhores Resultados:
gcc-4.4.real -O3 -o Fibonacci fibonacci.c
real	0m6.580s
user	0m5.743s
sys	0m0.000s

gcc-4.4.real -march=native -O3 -o Fibonacci fibonacci.c
real	0m6.766s
user	0m5.910s
sys	0m0.007s

gcc-4.4.real -O3 -pipe -o Fibonacci fibonacci.c
real	0m6.685s
user	0m5.723s
sys	0m0.007s

gcc-4.4.real -march=native -O3 -pipe -mtune=generic -mcx16 -msahf --param l1-cache-size=16 --param l1-cache-line-size=64 --param l2-cache-size=256 -o Fibonacci fibonacci.c
real	0m6.871s
user	0m5.746s
sys	0m0.000s

gcc-4.4.real -march=nocona -O3 -pipe -mtune=nocona -mcx16 -msahf --param l1-cache-size=16 --param l1-cache-line-size=64 --param l2-cache-size=256 -o Fibonacci fibonacci.c
real	0m6.878s
user	0m5.903s
sys	0m0.007s

gcc-4.4.real -march=native -O3 -pipe -o Fibonacci fibonacci.c
real	0m6.936s
user	0m5.940s
sys	0m0.000s

gcc-4.4.real -march=native -O3 -pipe -mtune=native -mcx16 -msahf --param l1-cache-size=16 --param l1-cache-line-size=64 --param l2-cache-size=256 -o Fibonacci fibonacci.c
real	0m6.970s
user	0m5.886s
sys	0m0.010s