If you have a lot of readings then Struct is the winner.
If you have equal read/write then Hash
And forget for OpenStruct
Here is why and how I benchmark all those methods
guda: ~/vanilla_ui/vanilla_properties (v2 *$ u=) ∴ irb
ruby-1.8.7-p330 :001 > require ‘benchmark’
=> true
ruby-1.8.7-p330 :002 > require ‘ostruct’
=> false
ruby-1.8.7-p330 :003 > n = 5000000
=> 5000000
ruby-1.8.7-p330 :004 >
ruby-1.8.7-p330 :005 > puts “convertions”
convertions
=> nil
ruby-1.8.7-p330 :006 >
ruby-1.8.7-p330 :007 > Benchmark.bm do |x|
ruby-1.8.7-p330 :008 > x.report(“Struct init at start”) { CustomerOne = Struct.new(:name, :age); s = CustomerOne.new(‘a’); n.times do s.name; end }
ruby-1.8.7-p330 :009?> x.report(“Struct with write op”) { CustomerTwo = Struct.new(:name, :age); s = CustomerTwo.new; s.name = ‘a’; n.times do s.name; end }
ruby-1.8.7-p330 :010?> x.report(“Hash”) { s = Hash.new; s[:name] = ‘a’; n.times do ; s[:name]; end }
ruby-1.8.7-p330 :011?> x.report(“OpenStruct”) { s = OpenStruct.new; s.name = ‘a’; n.times do ; s.name; end }
ruby-1.8.7-p330 :012?> end
user system total real
Struct init at start
1.160000 0.000000 1.160000 ( 1.155457)
Struct with write op 1.200000 0.000000 1.200000 ( 1.208754)
Hash 1.510000 0.000000 1.510000 ( 1.507588)
OpenStruct 5.990000 0.000000 5.990000 ( 5.999714)
=> true
Lets do some = operations
ruby-1.8.7-p330 :015 > Benchmark.bm do |x|
ruby-1.8.7-p330 :016 > x.report(“Struct init at start”) { CustomerMale = Struct.new(:name, :age); n.times do s = CustomerMale.new(‘a’); s.name; end }
ruby-1.8.7-p330 :017?> x.report(“Hash”) { n.times do ; s = Hash.new; s[:name] = ‘a’; s[:name]; end }
ruby-1.8.7-p330 :018?> x.report(“Struct with write op”) { CustomerFemale = Struct.new(:name, :age); n.times do s = CustomerFemale.new; s.name = ‘a’; s.name; end }
ruby-1.8.7-p330 :019?> x.report(“OpenStruct”) { n.times do ; s = OpenStruct.new; s.name = ‘a’; s.name; end }
ruby-1.8.7-p330 :020?> end
user system total real
Struct init at start 9.930000 0.000000 9.930000 ( 9.943670)
Hash 11.090000 0.000000 11.090000 ( 11.127766)
Struct with write op 12.230000 0.000000 12.230000 ( 12.243452)
OpenStruct still working ….
