==== Speed tests ====

As cgi: (from scratch each time):
               Rate origCode    duff     L~R     ccn  fizbin ccn_fast ccn_faster
origCode     3799/s       --    -33%    -83%    -87%    -89%     -96%       -97%
duff         5671/s      49%      --    -75%    -80%    -84%     -94%       -95%
L~R         23009/s     506%    306%      --    -19%    -36%     -75%       -79%
ccn         28461/s     649%    402%     24%      --    -21%     -69%       -75%
fizbin      36068/s     849%    536%     57%     27%      --     -61%       -68%
ccn_fast    92559/s    2337%   1532%    302%    225%    157%       --       -17%
ccn_faster 111920/s    2846%   1874%    386%    293%    210%      21%         --

As mod_perl: (NOT from scratch each time):
               Rate  fizbin ccn_fast     ccn ccn_faster     L~R origCode    duff
fizbin      36073/s      --     -61%    -62%       -68%    -92%     -92%    -92%
ccn_fast    92123/s    155%       --     -2%       -17%    -80%     -80%    -80%
ccn         94311/s    161%       2%      --       -15%    -79%     -80%    -80%
ccn_faster 111200/s    208%      21%     18%         --    -75%     -76%    -76%
L~R        450572/s   1149%     389%    378%       305%      --      -3%     -3%
origCode   462599/s   1182%     402%    391%       316%      3%       --     -1%
duff       466249/s   1193%     406%    394%       319%      3%       1%      --