Serialisation benchmark

serbench.rb

$LOAD_PATH.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))

require 'yajl'
require 'benchmark'
require 'pp'
require 'zlib'


def fract(n)   n==0? 'eeee' :  {"l"+n.to_s => fract(n-1) , :i=> (0..n).to_a, "r"+n.to_s => fract(n-1) }  ; end
class String ; def zip() Zlib::Deflate.deflate(self,3) end end

ITER = 1_000

small = [:ok, :answers, [42] * 42]
large = ["abc" * 1000] * 100
complex = fract(10)
puts "Size of data, and size zipped :"

puts("YAJL complex size  #{Yajl::Encoder.encode(complex).size} #{Yajl::Encoder.encode(complex).zip.size}")
puts("Mars complex size  #{Marshal.dump(complex).size} #{Marshal.dump(complex).zip.size}")
puts("Ruby complex size  #{complex.inspect.size} #{complex.inspect.zip.size}")
 
Benchmark.bm do |bench|
  bench.report("YAJL small") {(ITER*2).times {Yajl::Parser.parse(Yajl::Encoder.encode(small))}}
  bench.report("Mars small") {(ITER*2).times {Marshal.load(Marshal.dump(small))}}
  bench.report("Ruby small") {(ITER*2).times {eval(small.inspect)}}
  puts
  bench.report("YAJL large") {ITER.times {Yajl::Parser.parse(Yajl::Encoder.encode(large))}}
  bench.report("Mars large") {ITER.times {Marshal.load(Marshal.dump(large))}}
  bench.report("Ruby large") {ITER.times {eval(large.inspect)}}
  puts  
  iter=ITER/4
  bench.report("YAJL complex") {iter.times {Yajl::Parser.parse(Yajl::Encoder.encode(complex))}}
  bench.report("Mars complex") {iter.times {Marshal.load(Marshal.dump(complex))}}
  bench.report("Ruby complex") {iter.times {eval(complex.inspect)}}
end