--- /dev/null
+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