L1
Honest Take — Before You Begin
Honest reflections on making Rails fast and keeping it fast
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Course · 6 lessons
~50 hr
Advanced
Performance, Profiling & Scaling
Identify and fix performance bottlenecks in Ruby and Rails applications — from N+1 queries to memory bloat to slow views. Learn to profile, benchmark, cache, and scale.
reading · we frame, you read MIT or the canonical
taught · we author, no canonical fits
↺ spirals back to earlier lessons
Course locked
Complete API Design & Architecture first.
This course unlocks once you've finished its prerequisite. Open prerequisite →
L2
Read: The Complete Guide to Rails Performance (Berkopec)
Approach: READ cover-to-cover
primary
Nate Berkopec's Blog (speedshop.co)
locked
L3
Read: Rails Scales!
Approach: READ cover-to-cover
primary
Nate Berkopec's Blog (speedshop.co)
locked
L4
Read: Efficient Rails
Approach: SELECTIVE: chapters not covered by Berkopec
primary
Nate Berkopec's Blog (speedshop.co)
locked
L5
Module Checklist
Work through each item before the checkpoint.
locked
L6
Checkpoint: Profile a production Rails app (or your most substantial ...
Profile a production Rails app (or your most substantial project) end-to-end. Identify the top 3 performance bottlenecks using rack-mini-profiler and flamegraphs. Fix them. Docume…
locked
6 lessons. Read in order; spiral back when you need to. By the end you'll have used the core ideas twice — once on the abstract, once on something you'll meet at work next week.