From f0dd77c6be6a86fe384bb0015151e0a497973d39 Mon Sep 17 00:00:00 2001
From: Yehuda Katz + Carl Lerche <ykatz+clerche@engineyard.com>
Date: Thu, 24 Sep 2009 14:01:31 -0700
Subject: Move railties/lib/* into railties/lib/*

---
 .../lib/rails/commands/performance/benchmarker.rb  | 24 +++++++++++
 .../lib/rails/commands/performance/profiler.rb     | 50 ++++++++++++++++++++++
 2 files changed, 74 insertions(+)
 create mode 100644 railties/lib/rails/commands/performance/benchmarker.rb
 create mode 100644 railties/lib/rails/commands/performance/profiler.rb

(limited to 'railties/lib/rails/commands/performance')

diff --git a/railties/lib/rails/commands/performance/benchmarker.rb b/railties/lib/rails/commands/performance/benchmarker.rb
new file mode 100644
index 0000000000..e8804fe1bf
--- /dev/null
+++ b/railties/lib/rails/commands/performance/benchmarker.rb
@@ -0,0 +1,24 @@
+if ARGV.empty?
+  puts "Usage: ./script/performance/benchmarker [times] 'Person.expensive_way' 'Person.another_expensive_way' ..."
+  exit 1
+end
+
+begin
+  N = Integer(ARGV.first)
+  ARGV.shift
+rescue ArgumentError
+  N = 1
+end
+
+require RAILS_ROOT + '/config/environment'
+require 'benchmark'
+include Benchmark
+
+# Don't include compilation in the benchmark
+ARGV.each { |expression| eval(expression) }
+
+bm(6) do |x|
+  ARGV.each_with_index do |expression, idx|
+    x.report("##{idx + 1}") { N.times { eval(expression) } }
+  end
+end 
diff --git a/railties/lib/rails/commands/performance/profiler.rb b/railties/lib/rails/commands/performance/profiler.rb
new file mode 100644
index 0000000000..7df840f197
--- /dev/null
+++ b/railties/lib/rails/commands/performance/profiler.rb
@@ -0,0 +1,50 @@
+if ARGV.empty?
+  $stderr.puts "Usage: ./script/performance/profiler 'Person.expensive_method(10)' [times] [flat|graph|graph_html]"
+  exit(1)
+end
+
+# Keep the expensive require out of the profile.
+$stderr.puts 'Loading Rails...'
+require RAILS_ROOT + '/config/environment'
+
+# Define a method to profile.
+if ARGV[1] and ARGV[1].to_i > 1
+  eval "def profile_me() #{ARGV[1]}.times { #{ARGV[0]} } end"
+else
+  eval "def profile_me() #{ARGV[0]} end"
+end
+
+# Use the ruby-prof extension if available.  Fall back to stdlib profiler.
+begin
+  begin
+    require "ruby-prof"
+    $stderr.puts 'Using the ruby-prof extension.'
+    RubyProf.measure_mode = RubyProf::WALL_TIME
+    RubyProf.start
+    profile_me
+    results = RubyProf.stop
+    if ARGV[2]
+      printer_class = RubyProf.const_get((ARGV[2] + "_printer").classify)
+    else
+      printer_class = RubyProf::FlatPrinter
+    end
+    printer = printer_class.new(results)
+    printer.print($stderr)
+  rescue LoadError
+    require "prof"
+    $stderr.puts 'Using the old ruby-prof extension.'
+    Prof.clock_mode = Prof::GETTIMEOFDAY
+    Prof.start
+    profile_me
+    results = Prof.stop
+    require 'rubyprof_ext'
+    Prof.print_profile(results, $stderr)
+  end
+rescue LoadError
+  require 'profiler'
+  $stderr.puts 'Using the standard Ruby profiler.'
+  Profiler__.start_profile
+  profile_me
+  Profiler__.stop_profile
+  Profiler__.print_profile($stderr)
+end
-- 
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