or download this
Benchmark: running ID Field, Numeric, Refaddr, String for at least 3 C
+PU seconds...
ID Field: 4 wallclock secs ( 3.43 usr + 0.03 sys = 3.46 CPU) @ 10
+44124.57/s (n=3612671)
Numeric: 4 wallclock secs ( 3.34 usr + 0.04 sys = 3.38 CPU) @ 98
+9664.50/s (n=3345066)
Refaddr: 5 wallclock secs ( 3.08 usr + 0.03 sys = 3.11 CPU) @ 91
+2330.23/s (n=2837347)
String: 4 wallclock secs ( 3.09 usr + 0.04 sys = 3.13 CPU) @ 74
+7332.27/s (n=2339150)