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Introductory Material

• Add Graal JIT Compilation to Your JVM Language in 5 Steps, A Tutorial http://stefan-marr.de/2015/11/add-graal-jit-compilation-to-your-jvm-language-in-5-easy-steps-step-1/

• The SimpleLanguage, an example of using Truffle with great JavaDocs. It is the officle getting-started project: https://github.com/graalvm/simplelanguage

• Truffle Tutorial, Christan Wimmer, PLDI 2016, 3h recording https://youtu.be/FJY96_6Y3a4 Slides

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--- full.txt	2020-03-05 17:04:32.230794000 +0900
+++ short.txt	2020-03-05 17:04:38.445322000 +0900
@@ -1,179 +1,3 @@
-1.8.5-p52
-1.8.5-p113
-1.8.5-p114
-1.8.5-p115
-1.8.5-p231
-1.8.6
-1.8.6-p36

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#!/usr/bin/env ruby

require "open-uri"
require "json"

unless ARGV[0] =~ %r{\Ahttps://bugs.ruby-lang.org/issues/(\d+)\z}
  puts "Usage: #$0 https://bugs.ruby-lang.org/issues/XXXX"
  exit 1
end

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# frozen_string_literal: true

source 'https://rubygems.org'
git_source(:github) { |repo| "https://github.com/#{repo}.git" }

# ruby '2.6'

# Full-stack web application framework.
gem 'rails', github: 'rails/rails'

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Perfer.session "Array#sort" do |s|
  s.bench "Array#sort" do |b|
    b.description "Yeah sorting"
    b.bench_code do |n|
      ary = Array.new(n) { rand(n) }

      b.measure do # mmh, should not be b here ideally
        ary.sort
      end
    end

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> viiite report --regroup=bench,ruby --hierarchy
+---------+-------------------------------------------------------------------+
| :bench  | :measure                                                          |
+---------+-------------------------------------------------------------------+
| :sloppy | +-------------------+----------+----------+----------+----------+ |
|         | | :ruby             | :user    | :system  | :total   | :real    | |
|         | +-------------------+----------+----------+----------+----------+ |
|         | | jruby 1.6.3       | 1.570500 | 0.000000 | 1.570500 | 1.570500 | |
|         | | jruby 1.7.0.dev   | 1.623200 | 0.000000 | 1.623200 | 1.623200 | |
|         | | ree 2011.03       | 2.155000 | 0.000000 | 2.155000 | 2.157875 | |

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This example shows how to setup an environment running Rails 3 beta under 1.9.1 with a 'rails3' gem set.
((This is a fork of wayne, please see his gist if you want recent syntax for rvm.
Mainly, gems is replaced by gemset))

∴ rvm update --head
# ((Open a new shell))

# If you do not already have the ruby interpreter installed, install it:
∴ rvm install 1.9.1