A quick benchmark for ice_cube

README.md

Quick benchmark to see how ice_cube behaves in the far future. It seems that the cost is linearly increasing.

Results at: http://bit.ly/pjsQH1

(note: second version is without the time parse in the loop)

ice_cube_benchmark.rb

require 'spec_helper'

include IceCube

describe "Recurrence" do

  describe 'repeat monthly on day of the month' do
    
    let(:schedule) {
      start_date = Time.parse('2011-5-14')
      day_of_month = start_date.day # day of month
      schedule = Schedule.new(start_date)
      schedule.add_recurrence_rule Rule.monthly.day_of_month(day_of_month)
      schedule
    }
    
    it 'is fast enough even in the far future' do
      (2012..2050).each do |year|
        start_time = Time.parse("#{year}-5-5")
        end_time = Time.parse("#{year+1}-5-5")
        
        measure = Benchmark.realtime {
          300.times do
            occurrences = schedule.occurrences_between(
              start_time,
              end_time
            )
          end
        }
        puts "#{year} => #{measure}"
      end
      
    end


end