psych yaml vs. json

gistfile1.rb

require 'benchmark'
require 'psych'
require 'json'
 
some_data = {:user => {:name => ["Joe", "Smith"]}, :product => {:id => 2, :name => "Whatever"}, :some_long_string => "s" * 2000, :some_long_number => 1000000000 * 100000000000}
some_yaml = some_data.to_yaml
some_json = some_data.to_json
 
Benchmark.bm do |b|
  b.report("yaml parse") { Psych.load(some_yaml) }
  b.report("json parse") { JSON.parse(some_json) }
end
 
#             user       system     total       real
# yaml parse  0.000000   0.000000   0.000000 (  0.001455)
# json parse  0.000000   0.000000   0.000000 (  0.000074)