# run with perl 5.6.1

EXPECTED   : "string (12"" or 1 foot or 1') into 6"" MySQL varchar"
index      : "string (12"" or 1 foot or 1') into 6"" MySQL varchar"
s///       : "string (12"" or 1 foot or 1') into 6"" MySQL varchar"
substr     : "string (12"" or 1 foot or 1') into 6"" MySQL varchar"

Benchmark: timing 1000000 iterations of index      , s///       , substr     ...
index      : 19 wallclock secs (19.66 usr +  0.02 sys = 19.68 CPU) @ 50813.01/s (n=1000000)
s///       : 19 wallclock secs (19.85 usr +  0.00 sys = 19.85 CPU) @ 50377.83/s (n=1000000)
substr     : 23 wallclock secs (24.13 usr +  0.00 sys = 24.13 CPU) @ 41442.19/s (n=1000000)
               Rate substr      s///        index
substr      41442/s          --        -18%        -18%
s///        50378/s         22%          --         -1%
index       50813/s         23%          1%          --

# and with perl 5.8.0

EXPECTED   : "string (12"" or 1 foot or 1') into 6"" MySQL varchar"
substr     : "string (12"" or 1 foot or 1') into 6"" MySQL varchar"
index      : "string (12"" or 1 foot or 1') into 6"" MySQL varchar"
s///       : "string (12"" or 1 foot or 1') into 6"" MySQL varchar"

Benchmark: timing 1000000 iterations of index      , s///       , substr     ...
index      : 18 wallclock secs (18.71 usr +  0.01 sys = 18.72 CPU) @ 53418.80/s (n=1000000)
s///       : 33 wallclock secs (31.67 usr +  0.02 sys = 31.69 CPU) @ 31555.70/s (n=1000000)
substr     : 35 wallclock secs (35.24 usr +  0.01 sys = 35.25 CPU) @ 28368.79/s (n=1000000)
               Rate substr      s///        index
substr      28369/s          --        -10%        -47%
s///        31556/s         11%          --        -41%
index       53419/s         88%         69%          --