#349: A Guide to Ruby Backend Performance

Jobs

• VP of Engineering at Honestbee - Paid Relocation to SingaporeGo international as the VP of Engineering (RoR, Node.js) at Honestbee. Join the team and get paid relocation, local residency, etc. Honestbee
• Senior/Lead Ruby Engineer (New York, NY)We’re changing the way content is measured. If you’re a Rails expert who likes working with smart people, we want to talk to you. SimpleReach
• Ruby on Rails Full Stack Developer • Remote • Full or Part-timeOpportunity for a senior full-stack Ruby on Rails developer to build a first-rate online marketplace & practice management web app Harley Therapy Platform

Can't find the right job? Want companies to apply to you?Try Hired.com.

In brief

• Rails 5.0.3 and 5.1.1 Released news
  Both are non-urgent bugfix releases only. 
  Official Rails Blog
• Debugging a Memory Leak on Heroku 
  In this free eBook you will learn how to debug a memory leak on Heroku. 
  Codeship  Sponsored
• Quick Tip: Don’t Use Objects as Hash Keys tutorial 
  Daniel P. Clark
• The Hidden Cost of Invisible Extraneous Queries in Rails tutorial 
  Alex Castaño
• Developing Games With Ruby tutorial
  A Leanpub book on developing 2D graphical games that's free to read online. 
  Tomas Varaneckas
• What If We Organized Code by Features? tutorial 
  Jim Gay
• Quick Tip: Rails 5.1 Does Not Share thread_mattr_accessor tutorial
  Fixes an issue from Rails 5.0 where thread_mattr_accessor variables were shared with subclasses. 
  Mohit Natoo
• Using Elm on Rails 5.1 with Webpacker tutorial 
  Bendyworks
• How to Build a Slack Bot in Ruby tutorial 
  Runtime Revolution
• A Simple Step-by-Step Start to Using GraphQL with Rails tutorial 
  Drian Hillman
• Using Result Objects for Errors Without Exceptions tutorial
  A look at Result objects for more explicit exception handling. 
  Tom Dalling
• 24/7 operations support built just for ROR 
  Keep your team busy building your app, not solving ops headaches. Unlimited deploys, immediate roll-back & more. 
  reinteractive  Sponsored
• A Tale of Fixing a Bug in JRuby story 
  Konstantin Shabanov
• On Cleaner Routing in Rails story
  Having a lot of nested controllers can make the routes file a mess. Here’s one story of cleaning up these routes. 
  Josh Thompson
• Routing Partials video
  A way to separate routes into files to remove noise in large Rails apps. 
  Drifting Ruby
• Writing A GameBoy Emulator in Ruby video 
  Colby Swandale
• Continuous Integration and Delivery for Ruby Projects Made Easy tools 
  CircleCI  Sponsored
• CanCanCan 2.0: The Authorization Library code
  GitHub repo. 
  Alessandro Rodi
• cuckoo_filter: Pure Ruby Cuckoo Filter Implementation code
  Quickly determine set membership, such as an object in a cache or similar store. 
  Pawan Dubey