#!/usr/bin/perl -w
# usage : ./this_script.pl < input_file > captured_benchmarks
use strict;
use Benchmark;
my @data=<>;
my (@res1,@res2,@res3);
timethese (100000000,
	{ grep_and => q{
	@res1 = grep /GGGGGACACCTTCTCTCTCT/ && /RH_MEa0001bG06/, @data;
	},
	double_grep => q{
	@res2 = grep /GGGGGACACCTTCTCTCTCT/,grep /RH_MEa0001bG06/,@data;
	},
	lookahead_grep => q{
	@res3 = grep /^(?=.*GGGGGACACCTTCTCTCTCT)(?=.*RH_MEa0001bG06)/,@data;
	}
}
);