# A benchmark pioneered by @tenderlove 
# @see https://gist.github.com/1170106

class Sloppy
  def sloppy; @sloppy; end
end

class Tidy
  def initialize; @tidy = nil; end
  def tidy;       @tidy; end
end

require 'viiite'
n = 100_000_000
Viiite.bm do |b|
  tidy   = Tidy.new
  sloppy = Sloppy.new
  b.variation_point :ruby, Viiite.which_ruby
  b.report(:tidy)   { n.times{ tidy.tidy     } }
  b.report(:sloppy) { n.times{ sloppy.sloppy } }
end

$ rvm exec viiite --append run --runs=10 sloppy_and_tidy
...

$ viiite report --regroup=bench,ruby --hierarchy --stddev --ff="%10.6f"
+---------+----------------------------------------------------------------------------------------+
| :bench  | :measure                                                                               |
+---------+----------------------------------------------------------------------------------------+
| :sloppy | +-------------------+------------+------------+------------+------------+------------+ |
|         | | :ruby             | :user      | :system    | :total     | :real      | :stddev    | |
|         | +-------------------+------------+------------+------------+------------+------------+ |
|         | | jruby 1.6.3       |  19.844100 |   0.000000 |  19.844100 |  19.844100 |   0.210988 | |
|         | | rubinius 1.2.5dev |   8.580536 |   0.006400 |   8.586937 |   8.592304 |   0.206369 | |
|         | | rubinius 2.0.0dev |   7.834090 |   0.005600 |   7.839690 |   7.846725 |   0.034818 | |
|         | | ruby 1.8.7p352    |  34.353000 |   0.015000 |  34.368000 |  34.395148 |   0.062097 | |
|         | | ruby 1.9.2p290    |  22.478000 |   0.009000 |  22.487000 |  22.483678 |   0.089672 | |
|         | | ruby 1.9.3dev     |  18.030000 |   0.004000 |  18.034000 |  18.047614 |   0.118169 | |
|         | +-------------------+------------+------------+------------+------------+------------+ |
| :tidy   | +-------------------+------------+------------+------------+------------+------------+ |
|         | | :ruby             | :user      | :system    | :total     | :real      | :stddev    | |
|         | +-------------------+------------+------------+------------+------------+------------+ |
|         | | jruby 1.6.3       |  19.766700 |   0.000000 |  19.766700 |  19.766700 |   0.501114 | |
|         | | rubinius 1.2.5dev |   8.992562 |   0.004400 |   8.996962 |   8.863138 |   1.244846 | |
|         | | rubinius 2.0.0dev |  15.222951 |   0.012001 |  15.234952 |  15.202893 |   0.740747 | |
|         | | ruby 1.8.7p352    |  32.321000 |   0.023000 |  32.344000 |  32.369553 |   0.222809 | |
|         | | ruby 1.9.2p290    |  15.936000 |   0.009000 |  15.945000 |  15.938642 |   0.164393 | |
|         | | ruby 1.9.3dev     |  14.730000 |   0.003000 |  14.733000 |  14.745098 |   0.085094 | |
|         | +-------------------+------------+------------+------------+------------+------------+ |
+---------+----------------------------------------------------------------------------------------+

$ viiite report --regroup=ruby,bench --hierarchy --stddev --ff="%10.6f"
+-------------------+------------------------------------------------------------------------------+
| :ruby             | :measure                                                                     |
+-------------------+------------------------------------------------------------------------------+
| jruby 1.6.3       | +---------+------------+------------+------------+------------+------------+ |
|                   | | :bench  | :user      | :system    | :total     | :real      | :stddev    | |
|                   | +---------+------------+------------+------------+------------+------------+ |
|                   | | :sloppy |  19.844100 |   0.000000 |  19.844100 |  19.844100 |   0.210988 | |
|                   | | :tidy   |  19.766700 |   0.000000 |  19.766700 |  19.766700 |   0.501114 | |
|                   | +---------+------------+------------+------------+------------+------------+ |
| rubinius 1.2.5dev | +---------+------------+------------+------------+------------+------------+ |
|                   | | :bench  | :user      | :system    | :total     | :real      | :stddev    | |
|                   | +---------+------------+------------+------------+------------+------------+ |
|                   | | :sloppy |   8.580536 |   0.006400 |   8.586937 |   8.592304 |   0.206369 | |
|                   | | :tidy   |   8.992562 |   0.004400 |   8.996962 |   8.863138 |   1.244846 | |
|                   | +---------+------------+------------+------------+------------+------------+ |
| rubinius 2.0.0dev | +---------+------------+------------+------------+------------+------------+ |
|                   | | :bench  | :user      | :system    | :total     | :real      | :stddev    | |
|                   | +---------+------------+------------+------------+------------+------------+ |
|                   | | :sloppy |   7.834090 |   0.005600 |   7.839690 |   7.846725 |   0.034818 | |
|                   | | :tidy   |  15.222951 |   0.012001 |  15.234952 |  15.202893 |   0.740747 | |
|                   | +---------+------------+------------+------------+------------+------------+ |
| ruby 1.8.7p352    | +---------+------------+------------+------------+------------+------------+ |
|                   | | :bench  | :user      | :system    | :total     | :real      | :stddev    | |
|                   | +---------+------------+------------+------------+------------+------------+ |
|                   | | :sloppy |  34.353000 |   0.015000 |  34.368000 |  34.395148 |   0.062097 | |
|                   | | :tidy   |  32.321000 |   0.023000 |  32.344000 |  32.369553 |   0.222809 | |
|                   | +---------+------------+------------+------------+------------+------------+ |
| ruby 1.9.2p290    | +---------+------------+------------+------------+------------+------------+ |
|                   | | :bench  | :user      | :system    | :total     | :real      | :stddev    | |
|                   | +---------+------------+------------+------------+------------+------------+ |
|                   | | :sloppy |  22.478000 |   0.009000 |  22.487000 |  22.483678 |   0.089672 | |
|                   | | :tidy   |  15.936000 |   0.009000 |  15.945000 |  15.938642 |   0.164393 | |
|                   | +---------+------------+------------+------------+------------+------------+ |
| ruby 1.9.3dev     | +---------+------------+------------+------------+------------+------------+ |
|                   | | :bench  | :user      | :system    | :total     | :real      | :stddev    | |
|                   | +---------+------------+------------+------------+------------+------------+ |
|                   | | :sloppy |  18.030000 |   0.004000 |  18.034000 |  18.047614 |   0.118169 | |
|                   | | :tidy   |  14.730000 |   0.003000 |  14.733000 |  14.745098 |   0.085094 | |
|                   | +---------+------------+------------+------------+------------+------------+ |
+-------------------+------------------------------------------------------------------------------+