Add example runner for 3.0 final benchmark

Author: Noah Gibbs

example_runners/3_0_final_runner.rb

@@ -0,0 +1,48 @@
+#!/usr/bin/env ruby
+
+# Simple example runner script, editable for different uses
+
+RUBIES = [
+  #"2.5.3",
+  "2.6.6",
+  "2.7.1",
+  "ext-new_fake_2.8",
+]
+
+TESTS = [
+  "gem install bundler -v 1.17.3 && bundle _1.17.3_ && bundle _1.17.3_ exec ./start.rb -i 15000 -w 1000 -s 0 --no-warm-start -o data/",
+]
+
+TIMES = 30
+
+# Checked system - error if the command fails
+def csystem(cmd, err, opts = {})
+  cmd = "bash -l -c \"#{cmd}\"" if opts[:bash] || opts["bash"]
+  print "Running command: #{cmd.inspect}\n" if opts[:to_console] || opts["to_console"] || opts[:debug] || opts["debug"]
+  if opts[:to_console] || opts["to_console"]
+    system(cmd, out: $stdout, err: :out)
+  else
+    out = `#{cmd}`
+  end
+  unless $?.success? || opts[:fail_ok] || opts["fail_ok"]
+    puts "Error running command:\n#{cmd.inspect}"
+    puts "Output:\n#{out}\n=====" if out
+    raise err
+  end
+end
+
+commands = []
+RUBIES.each do |ruby|
+  TESTS.each_with_index do |test, test_index|
+    invocation = "rvm use #{ruby} && export RUBY_RUNNER_TEST_INDEX=#{test_index} && #{test}"
+    commands.concat([invocation] * TIMES)
+  end
+end
+
+rand_commands = commands.shuffle
+
+rand_commands.each do |command|
+  csystem(command, "Error running test!", bash: true, to_console: true)
+end
+
+csystem("touch #{ENV["HOME"]}/run_finished.txt", "Error creating run-finished file!", bash: false, to_console: true)