Listing 1. Effects of Architecture Specification
on a Simple Application

[mtj@camus]$ gcc -o sort sort.c -O2
[mtj@camus]$ time ./sort

real    0m1.036s
user    0m1.030s
sys     0m0.000s
[mtj@camus]$ gcc -o sort sort.c -O2 -march=pentium2
[mtj@camus]$ time ./sort

real    0m0.799s
user    0m0.790s
sys     0m0.010s
[mtj@camus]$