P:\test>354830

Comparing data/500k.dat
                       Rate  Tie::File    readfwd File::ReadBackwards      rawio
Tie::File            5.15/s         --       -95%                -99%      -100%
readfwd              94.4/s      1734%         --                -88%       -99%
File::ReadBackwards   783/s     15101%       729%                  --       -95%
rawio               15058/s    292394%     15852%               1824%         --

Comparing data/1000k.dat
                       Rate  Tie::File    readfwd File::ReadBackwards      rawio
Tie::File            2.50/s         --       -94%               -100%      -100%
readfwd              43.7/s      1650%         --                -95%      -100%
File::ReadBackwards   871/s     34777%      1893%                  --       -94%
rawio               14917/s    597126%     34023%               1612%         --

Comparing data/2MB.dat
                       Rate  Tie::File    readfwd File::ReadBackwards      rawio
Tie::File            1.24/s         --       -95%               -100%      -100%
readfwd              23.6/s      1797%         --                -98%      -100%
File::ReadBackwards  1051/s     84542%      4363%                  --       -93%
rawio               14894/s   1198858%     63119%               1316%         --