tokyocabinet-benchmark.rb

require 'benchmark'
require 'tokyocabinet'
require 'digest/sha1'
require 'pp'

bdb = TokyoCabinet::BDB.new
unless bdb.open("dbd-benchmark.dbd", TokyoCabinet::BDB::OWRITER | TokyoCabinet::BDB::OCREAT)
  exit
end

class Hoge
  attr_accessor :id, :name, :age, :sex, :text

  def initialize(num = rand(1000))
    @id   = num
    @name = "#{@id}さん"
    @age  = num.to_s(36)
    @sex  = num % 2
    @text = @name
  end

  def ==(hoge)
    @id == hoge.id and @name == hoge.name and @age == hoge.age and @sex == hoge.sex
  end
end

puts Benchmark::CAPTION
puts Benchmark.measure {
  (1..100_000).each do |i|
    hash = Digest::SHA1.hexdigest(i.to_s)
    bdb.put(hash, Marshal.dump(Hoge.new(i)))
  end
}

count = 0

puts Benchmark::CAPTION
puts Benchmark.measure {
  (1..100_000).each do |i|
    hash = Digest::SHA1.hexdigest(i.to_s)
    count += 1 if Marshal.load(bdb.get(hash)) == Hoge.new(i)
  end
}
count # => 100000


a = Hoge.new(1)
b = Hoge.new(1)
a == b # => true
# >>       user     system      total        real
# >>   2.630000   0.200000   2.830000 (  2.833207)
# >>       user     system      total        real
# >>   3.330000   0.140000   3.470000 (  4.034548)