Flamegraph support for Rails apps.

Add this line to your application's Gemfile:

gem 'myflamegraph'

And then execute:

$ bundle

Or install it yourself as:

$ gem install myflamegraph

For example, to profile OrdersController#index, OrdersController#create :

class OrdersController < ApplicationController
   # add this line
   ffff :index, :create

   def index
     # ...
   end

   def create
     # ...
   end
end

Run those methods anyway, then find flamegraph in tmp dir. (run Myflamegraph.tmp to figure out location of your tmp dir)

The gem is available as open source under the terms of the MIT License.