Iterations per second with version 1.01 on 500 MHz Personal Workstations.
                                        
Compiled    On      Ran on D.U.4    Ran on Linux
================================================
cc          D.U.4   317 K           318 K
cc.alt      D.U.4   327 K           329 K
gcc         D.U.4   353 K           353 K
gcc         Linux   N/A             356 K
cc.alt2     D.U.4   361 K           360 K


Notes:
  D.U. = Digital Unix
  N/A = doesn't work
  Seconds are user time returned by getrusage().
  cc.alt2 is a very-neat-but-not-yet-available version of Digital's C compiler.
  Flags were "gcc -O4" on Linux, "gcc -O4 -static" and
    "cc/cc.alt/cc.alt2 -O5 -tune ev5 -std1 -non_shared" on Digital Unix.