D:\Documents and Settings\James\Desktop>perl timereads.pl
Benchmark: running join, slurp, sys, while, each for at least 5 CPU seconds...
      join:  6 wallclock secs ( 3.92 usr +  1.33 sys =  5.25 CPU) @ 2823.36/s (n
=14817)
     slurp:  5 wallclock secs ( 2.39 usr +  2.88 sys =  5.28 CPU) @ 5813.53/s (n
=30678)
       sys:  5 wallclock secs ( 0.01 usr +  5.06 sys =  5.07 CPU) @ 11.25/s (n=5
7)
     while:  5 wallclock secs ( 4.03 usr +  1.28 sys =  5.31 CPU) @ 2834.21/s (n
=15044)
        Rate    sys   join  while  slurp
sys   11.2/s     --  -100%  -100%  -100%
join  2823/s 24998%     --    -0%   -51%
while 2834/s 25095%     0%     --   -51%
slurp 5814/s 51579%   106%   105%     --