Profilizer is a Ruby gem for easy profile of methods. It helps you to track how fast you methods are, how much memory the consume and how much objects were allocated.
The normal hand on profiling in Ruby doesn't require any gems and looks like this:
def profile
start = Time.now
yield if block_given?
finish = Time.now
puts "Duration: #{finish - start}"
endHowever, it is not handy in case you want more options. What if you can do the following?
class A
include Profilizer
profilize def foo
a = 1
b = 2
c = a + b
end
end
A.new.foo It will output in STDOUT something like:
Objects Freed: 39
Time: 0.02 seconds
Memory usage: 2.05 MB
Add this line to your application's Gemfile:
gem 'profilizer'And then execute:
$ bundle install
Or install it yourself as:
$ gem install profilizer
class A
include Profilizer
profilize def foo
a = 1
b = 2
c = a + b
end
end
A.new.foo It prints in STDOUT something like:
Objects Freed: 39
Time: 0.02 seconds
Memory usage: 2.05 MB
What if you only want to profile time, used memory, or objects allocations only. Here is how you could config it:
class A
include Profilizer
def foo
a = 1
b = 2
c = a + b
end
profilize :foo, time: true, memory: false, gc: false
end
A.new.foo It prints:
Time: 0.02 seconds
After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.
To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.
Bug reports and pull requests are welcome on GitHub at https://github.com/dkremez/profilizer.
The gem is available as open source under the terms of the MIT License.