miyucy/rack_prof

Rack middleware for profiling

RackProf

Rack middleware for profiling.

Installation

gem 'rack_prof'

or

$ gem install rack_prof

Usage

Modify config.ru like:

use RackProf

require ::File.expand_path('../config/environment',  __FILE__)
run YourApp::Application

You might need below to avoid 'stack level too deep' error:

RubyVM::InstructionSequence.compile_option = {
  :tailcall_optimization => true,
  :trace_instruction => false
}

Access to your application with a parameter 'profile=true' like:

http://localhost:3000/books?profile=true

You can specify printer like:

http://localhost:3000/books?profile=true&printer=flat

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request