Measure and Benchmark Time for Ruby Methods

Question

How can i measure the time taken by a method and the individual statements in that method in Ruby. If you see the below method i want to measure the total time taken by the meth

Answer 1

Use Benchmark's Report

require 'benchmark' # Might be necessary.

def foo
  Benchmark.bm( 20 ) do |bm|  # The 20 is the width of the first column in the output.
    bm.report( "Access Database:" ) do 
      # Code to access database.
    end
   
    bm.report( "Access Redis:" ) do
      # Code to access redis.
    end
  end
end

This will output something like the following:

                        user     system      total        real
Access Database:    0.020000   0.000000   0.020000 (  0.475375)
Access Redis:       0.000000   0.000000   0.000000 (  0.000037)

<------ 20 -------> # This is where the 20 comes in. NOTE: This is not shown in output.

More information can be found here.