処理時間を測定するだけのシンプルなクラス。今までに50回くらい同じことを書いている気がするのでメモ。

stop_watch.md

StopWatch

Simple class to measure process time in Ruby. Please use this class, when you don't need to use profile library.

Usage

# Start stop watch
StopWatch.start

# Lap stop watch
StopWatch.lap
#=> 1.001137[s] from: test.rb:3:in `initialize' to: test.rb:10:in `method'

stop_watch.rb

class StopWatch
  def self.start
    @@start_time = Time.now
    @@start_back_trace = caller()[0]
  end

  def self.lap
    begin
      puts (Time.now - @@start_time).to_s + '[s] from: ' + @@start_back_trace + ' to: ' + caller()[0]
    rescue
      p $!
    end
  end
end