The Fedora box has
/lib/tls/libc.so.6 -> libc-2.3.5.so
so, I assume the version is 2.3.5.

But that is besides the point.

The pure number of times system ran the program within a second would indicate overall system's power, so to speak. To my astonishment PIII under linux managed to run almost twice as many cycles withi a second than Xeon 3.2GHz under linux. Then the same Xeon h/w under old SCO OSR run twice as fast as PIII box.