benchmark regexp matching

gistfile1.rb

require 'bench_press'

extend BenchPress

reps 1000

measure "=~" do
  "abcdefg" =~ /a/
end

measure "String#match" do
  "abcdefg".match /a/
end

report.markdown

Regexp Matching

Date: 2010-03-17

System Information

Operating System:    Mac OS X 10.6.2 (10C540)
CPU:                 Intel Core 2 Duo 2.4 GHz
Processor Count:     2
Memory:              4 GB
Ruby version:        1.8.7 patchlevel 248

"=~" is up to 88% faster over 1000 repetitions

=~              0.00290203094482422 secs    Fastest
String#match    0.0257871150970459  secs    88% Slower