-bash-3.00$ perl -w db2test1.pl 
              Rate     bndEval   bndNoEval   noBndEval noBndNoEval
bndEval     114/s          --        -20%        -30%         -30%
bndNoEval   143/s         26%          --        -11%         -11%
noBndEval   161/s         42%         13%          --          -0%
noBndNoEval 161/s         42%         13%          0%           --