Ticket #8818: perform.rb

require 'benchmark'

messages = Message.find :all # 800 records
n = 10000

puts "Before patching..\n"

Benchmark.bm do |x|
  # String
  x.report { n.times { messages.map{|m| m.sender} } }
  x.report { n.times { messages.map(&:sender) } }
 
  # Integer
  x.report { n.times { messages.map{|m| m.id} } }
  x.report { n.times { messages.map(&:id) } }
end

class Symbol
  def to_proc
    lambda { |obj| obj.send self }
  end
end

puts "After patching..\n"

Benchmark.bm do |x|
  # String
  x.report { n.times { messages.map{|m| m.sender} } }
  x.report { n.times { messages.map(&:sender) } }
 
  # Integer
  x.report { n.times { messages.map{|m| m.id} } }
  x.report { n.times { messages.map(&:id) } }
end

# $ script/runner perform.rb 
# Before patching..
#       user     system      total        real
#  10.560000   0.070000  10.630000 ( 10.847635)
#  76.020000   0.500000  76.520000 ( 78.656028)
#   9.850000   0.070000   9.920000 ( 10.262587)
#  75.170000   0.490000  75.660000 ( 77.694786)
# After patching..
#       user     system      total        real
#  10.570000   0.070000  10.640000 ( 10.864351)
#  11.930000   0.080000  12.010000 ( 12.352464)
#   9.850000   0.070000   9.920000 ( 10.218872)
#  11.360000   0.090000  11.450000 ( 11.899277)