format_c@boston ~ $ su -c "perl test.pl 192.168.0.6" Password: Benchmark: timing 1000000 iterations of ICMP: , TCP: ... ICMP: : 229 wallclock secs (58.44 usr + 16.73 sys = 75.17 CPU) @ 13303.18/s (n=1000000) TCP: : 326 wallclock secs (137.08 usr + 36.07 sys = 173.15 CPU) @ 5775.34/s (n=1000000) format_c@boston ~ $