Performance - Giant Robots Smashing Into Other Giant Robots

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Introducing Test Budget: a linter for test performance

Your test suite didn’t get slow all at once. It won’t get fast all at once either. Start by making sure it stops getting worse.
Matheus Richard
March 17, 2026
Combine Capybara selectors to avoid the sequential timeout trap

How I shaved over a minute off a test suite with a one-line change.
Matheus Richard
March 6, 2026
props_template 1.0: A high performance, more opinionated jbuilder replacement

props_template 1.0: A high performance, more opinionated jbuilder replacement
Johny Ho
February 13, 2026
- Rails
- Performance
- Development
- Ruby
Announcing Michel: A scheduling gem for health tech

Remove bottlenecks to booking appointments by enabling self-scheduling within your app.
Sally Hall
February 5, 2026
- Health Tech
- Databases
- Ruby On Rails
- PostgreSQL
- Open
- Open Source
- Performance
- Web
Sorting elegantly in Rails with in_order_of

Sorting columns in custom order in Rails elegantly using inorderof.
Trésor Bireke
April 28, 2025
- Ruby
- Rails
- SQL
- Performance
- Code
Between immutability and memoization, you might have to choose

It is not always possible to have frozen AND performant objects in Ruby.
Rémy Hannequin
April 22, 2025
- Ruby
- Performance
How fast can an ActiveRecord SQL query run?

You have a SQL query that seems like it needs to be faster. What’s the upper-bound on improving that query’s performance?
Fritz Meissner
March 31, 2025
Things you might not need in your tests

Your test suite is slow and flaky because it does too much.
Matheus Richard
January 29, 2025
- Testing
- Performance
This Week in #dev (Feb 9, 2024)

Speed up your tests, a nice SQL trick, and a Jest global that you might not know about.
thoughtbot
February 19, 2024
- This Week In Dev
- Databases
- Rails
- Testing
- Jest
- Performance
This week in #dev (Jan 5, 2024)

Fuzzy finding Rails routes and speeding up test suites!
thoughtbot
January 15, 2024
- This Week In Dev
- Tip
- Test
- Performance
- Terminal
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