add optional ruby-profiling with --profile-ruby

dumps a large call graph into /var/chef/cache/graph_profile.out

1 files changed, 2 insertions, 0 deletions

diff --git a/Gemfile b/Gemfile
index 9d5cf0fea1..76f632976b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -18,6 +18,8 @@ group(:maintenance) do
 end
 
 group(:development, :test) do
+  # for profiling
+  gem "ruby-prof"
 
   gem "simplecov"
   gem 'rack', "~> 1.5.1"