$ cat incl.rb <\/div>
require 'benchmark'<\/div>
a=[]; 10_000.times { a << rand(100000) }<\/div>
Benchmark.bm { |x| <\/div>
x.report("include?") { 10_000.times { |i| a.include?(i) } } <\/div>
}<\/div>
<\/div>
$ jruby incl.rb <\/div>
include? 3.508000 0.000000 3.508000 ( 3.419000)<\/div>
<\/div>
$ ruby incl.rb <\/div>
include? 6.820000 0.020000 6.840000 ( 6.907210)<\/div>
<\/div>
$ ruby19 incl.rb <\/div>
include? 5.600000 0.020000 5.620000 ( 5.670348)<\/div>
<\/div>
<\/div>
$ ruby -v<\/div>
ruby 1.8.6 (2008-08-11 patchlevel 287) [universal-darwin9.0]<\/div>
<\/div>
$ ruby19 -v<\/div>
ruby 1.9.1p0 (2009-01-30 revision 21907) [i386-darwin9.7.0]<\/div>
<\/div>
$ jruby -v<\/div>
jruby 1.4.0dev (ruby 1.8.6p287) (2009-07-07 6586) (Java HotSpot(TM) 64-Bit Server VM 1.6.0_07) [x86_64-java]<\/div>
<\/div>
<\/div><\/pre><\/div>\n \n <\/div>\n\n