Ruby 2.1 and Garbage Collection issue and memory bloats in production unicorn and Phusion passenger

Are you working with Unicorn and getting memory leak issues with ruby 2.1 . A better explained scenario on memory allocation on heap with huge strings ,array and hashes in Ruby 2.1 by this author himself here :

 http://www.atdot.net/~ko1/activities/rubyconf2013-ko1_pub.pdf 

Whats the problem?

Tim Robertson explained this scenario  in his blog :
http://www.omniref.com/blog/blog/2014/03/27/ruby-garbage-collection-still-not-ready-for-production/

Well not sure about unicorn solution but Aman Gupta has a solution for Phusion Passenger.
as announced an Out-Of-Band garbage collector for Ruby 2.1.

Here is the Phusion Passenger blog on that one and usage. 

Phusion Passenger now supports the new Ruby 2.1 Out-Of-Band GC.