Say your Rails application is running in production and it’s getting good traffic, but performance isn’t as good you would like. You’ve already determined that your database is not the bottleneck. What’s your next move? Well, there is a good chance that Passenger’s PassengerMaxPoolSize needs to be adjusted. Read more

We’ve seen lots of people waste time tracing the Rails stack for performance issues when the cause is usually quite simpler – look at the obvious places first before digging through the Rails stack. Read more