Benchmarking Rails Model Methods

Question

Is there something similar to Ruby Benchmark within Rails? I have used Ruby benchmark in the past to compare different bits of code, but none of it was Rails related. I would like to use my application models in some benchmarking to do something along the lines of...

#!/usr/bin/ruby
require 'benchmark'

Benchmark.bmbm do |x|
  x.report("Benchmark 1") do 
    1_000_000.times do
      # do something here...
    end
  end

  x.report("Benchmark 2") do
    1_000_000.times do
      # Do something else here...
    end
  end
end

Which gives me some output like this:

Rehearsal -----------------------------------------------
Benchmark 1   0.070000   0.000000   0.070000 (  0.069236)
Benchmark 2   0.070000   0.000000   0.070000 (  0.069227)
-------------------------------------- total: 0.140000sec

                  user     system      total        real
Benchmark 1   0.070000   0.000000   0.070000 (  0.069793)
Benchmark 2   0.070000   0.000000   0.070000 (  0.069203)

I looked into script/performance/benchmarker and script/performance/profiler, but I couldn't figure out a way to compare methods. I also looked into doing it within a test, but I don't have any sort of assertions, so that didn't seem to make sense.

Answer 1

Performance testing your rails application might be all you need. I think that's all you can do with standalone Rails.