Benchmark: timing 1000 iterations of Odud, PMGurus, btrott, visnu...
      Odud: 10 wallclock secs ( 9.61 usr +  0.01 sys =  9.62 CPU)
   PMGurus:  6 wallclock secs ( 5.41 usr +  0.01 sys =  5.42 CPU)
    btrott:  7 wallclock secs ( 7.17 usr +  0.04 sys =  7.21 CPU)
     visnu: 11 wallclock secs (11.31 usr +  0.00 sys = 11.31 CPU)