From: jzakiya@...
Date: 2005-06-29T05:50:42+09:00
Subject: Re: I saw the beauty of Ruby Re: 1. Ruby result: 101 seconds , 2. Java result:9.8 seconds, 3. Perl result:62 seconds

With Ruby 1.8.2, Mandriva LE 2005, AMD K-7, 600MHz
Testing with 1_000_000.primes

Found this to be infintesimally faster:

       p.each { |f| break if (i%f).zero? or f > r }
       next if (i%f).zero?
       p.push(i)
     end

than this

       p.each { |f| break if (i%f).zero? or f > r }
       p.push(i) if (i%f).nonzero?
     end