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MRI 2.0.0p353:
$ ruby test.rb 
1
1
102
102

JRuby 1.7.9:
$ ruby test.rb 
19

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require 'sequel'
require 'benchmark'

# createdb factories_test

DB = Sequel.connect 'postgres://localhost/factories_test'

DB.drop_table? :test
DB.create_table :test do
  primary_key :id

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(The MIT License)

Copyright (c) 2012-2013 Myron Marston

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to

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# support/group_helpers.rb

module GroupHelpers
  def self.start_transaction
    # @_conn = DB.pool.send :acquire, Thread.current
    @_conn = DB.pool.hold{|conn| conn }
    DB.send(:add_transaction, @_conn, {savepoint: true})
    DB.send(:begin_transaction, @_conn, savepoint: true)
  end

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http://rubysource.com/streaming-with-rails-4/
http://www.highcharts.com/
https://bitbucket.org/cleonello/jqplot/wiki/Home
http://www.dreamfactory.com/
http://coding.smashingmagazine.com/2013/08/09/absolute-horizontal-vertical-centering-css/
http://tech.pro/blog/1486/client-side-storage-options
https://www.globalsign.com/ssl/ssl-open-source/
http://nowardev.wordpress.com/2012/05/16/create-debian-package-for-script-and-simple-project-with-cmake-and-cpack/
http://shvets.github.io/blog/2013/09/14/nodejs_and_karma.html

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require 'benchmark'
require 'active_support/hash_with_indifferent_access'


Benchmark.bmbm do |x|
  l1 = []; l2 = []
  # writing:
  # simulate objects returned by Sequel queries:
  x.report('creating array or regular hashes'){10_000.times{ l1 << { id: 1, name: 'column value' } }}
  x.report('creating array or proposed hashes'){10_000.times{ l2 << HashWithIndifferentAccess.new({ id: 1, name: 'column value' }) }}

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ruby symbols-performance.rb 
Rehearsal ------------------------------------
   0.540000   0.010000   0.550000 (  0.543421)
   0.680000   0.020000   0.700000 (  0.705931)
--------------------------- total: 1.250000sec

       user     system      total        real
   0.240000   0.000000   0.240000 (  0.244554)
   0.380000   0.000000   0.380000 (  0.391517)

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class User < Sequel::Model(:jsec_user)
  plugin :devise
  # other available modules:
  # :token_authenticatable, :registerable, :confirmable, :lockable, :timeoutable and :omniauthable
  # :recoverable, :rememberable, :trackable, :validatable, :encryptable
  devise :database_authenticatable, :timeoutable #, etc

end

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select username, count(*) over() from user order by username limit 5 offset 0;

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# for simple use case - doesn't take into account multiple occurrences
parseParams = (search = window.location.search)->
    d = (str)-> decodeURIComponent str.replace /\+/g, ' '
    query = search.substring 1
    regex = /(.*?)=([^\&]*)&?/g
    params = {}
    params[d(m[1])] = d(m[2]) while m = regex.exec query
    params