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 method and the time taken for database access and redis access. I do not want to write Benchmark.measure before every statement. Does the ruby interpreter gives us any hooks for doing this ?

def foo # code to access database # code to access redis.  end 

Answer 1

The simplest way:

require 'benchmark'  def foo  time = Benchmark.measure {   code to test  }  puts time.real #or save it to logs end 

Sample output:

2.2.3 :001 > foo   5.230000   0.020000   5.250000 (  5.274806) 

Values are: cpu time, system time, total and real elapsed time.

Source: ruby docs.

Answer 2

You could use the Time object. (Time Docs)

For example,

start = Time.now # => 2022-02-07 13:55:06.82975 +0100 # code to time finish = Time.now # => 2022-02-07 13:55:09.163182 +0100 diff = finish - start # => 2.333432 

diff would be in seconds, as a floating point number.