$ ./bm_foo.pl -N=10000
Benchmark: timing 10000 iterations of insert_and_select_foo_ora_sp, insert_and_select_foo_ora_sql...
insert_and_select_foo_ora_sp: 30 wallclock secs (10.17 usr +  0.38 sys = 10.55 CPU) @ 947.87/s (n=10000)
insert_and_select_foo_ora_sql: 20 wallclock secs ( 5.41 usr +  0.24 sys =  5.65 CPU) @ 1769.91/s (n=10000)