Blog
Ruby on Rails engineering blog.
We write deep technical blogs on Ruby on Rails, performance, scaling, monitoring and engineering. Written by the engineers who hit the problem, published since 2008. Every post comes out of client work or our own products: what broke, what we measured, and what actually fixed it.
Recent blogs
What we’ve been writing lately.
The newest posts from our engineers, straight from client work and our own products.
2026
2025
- Debugging a Stack Overflow in Rails 7.2.1.1Vishnu MRails
- Active Record adds support for deprecating associationsChirag ShahRails
- Active Job ContinuationsVishnu MRails
- Understanding Queueing TheoryVishnu MRails
- Understanding Active Record Connection PoolingVishnu MRails
- Finding the ideal threads per process with GVL toolingVishnu MRails
614 blog posts and counting.
We’ve been writing about software engineering since 2008.
Newsletter
Stay up to date with our blogs.
Subscribe to receive an email notification for a new blog post.