Comparison of long string generation

gistfile1.rb

require 'benchmark'
lengths = [10, 100 , 1000, 10000, 100000, 1000000]

Benchmark.bm do |x|
	lengths.each do |length|
		x.report("Length = #{length}\t\t\t") {(0...length.to_i).map{ ('a'..'z').to_a[rand(26)] }}
		x.report("Same without rand = #{length}\t\t\t") {(0...length.to_i).map{ ('a'..'z').to_a[1] }}
		x.report("Fixed characters Length = #{length}\t\t\t") {"x" * length}
	end
end

for 1000000 characters random takes 24 seconds on my machine!