The Future of Rack

on YouTube ↗55m

" summary

Covers concrete Rack problems and fixes: shows that 42% of call stack is middleware, demos memory tools (ObjectSpace dumps, allocation_tracer) and reports measured wins — an optimization cuts allocations by about 19% and another tweak yields ~10% improvement — with graphs and code examples. Proposes a new “metal” experimental API on GitHub to replace problematic Rack behaviors (streaming/body proxy, global env keys) and outlines a Rails 5 plan to run tests in parallel by preloading fixtures and coordinating transactions or per-process DBs.

AI-written summary · about

" chapters (8)

1. 0:00Introduction
2. 3:44Ruby evolution over 10 years
3. 10:19Memory profiling tools
4. 22:26Rack future and challenges
5. 34:52Metal project: new Rack API
6. 37:16Rails testing and parallelism
7. 45:10Conclusion
8. 51:57Q&A

" related talks

• 37mRuby on Rack: The Magic Between Request and ResponseMeagan Waller · RubyConf 2023
• 28mRack for web developersMichael J. I. Jackson · MountainWest RubyConf 2010
• 38mRewriting Rack: A Functional ApproachAlex Wheeler · RubyConf 2017
• 48mFrom Rails to Rack: Making Rails 3 a Better Ruby CitizenYehuda Katz · GoRuCo 2009
• 41mRack - A Framework to Roll Your OwnNishant Modak · RubyConf AU 2014
• 48mOn the Edge of Rails PerformanceGregg Pollack · RubyConf 2009
• 28mIn a World of Middleware, Who Needs Monolithic ApplicationsJon Crosby · MountainWest RubyConf 2009
• 30mThe Power of Middleware - Building Your Own Mini Web Framework on RackCharles Maxwood · Ruby|Web Conference 2010