Ruby Performance Optimization

Takeaways

When optimizing your application, look beyond the code in your search for performance problems. Sometimes an unoptimized application running on a properly configured software stack will perform better than the thoroughly optimized one in a poorly configured stack.

This chapter has expored several items you need to think about when deploying your Ruby application:

• Restart your long-running processes when they grow too large in memory. A freshly started application runs faster because the GC has fewer objects to collect.

• Run heavy tasks in an isolated forked environment. This way the forked process will give back to the operating system all the memory allocated during its execution.

• Do out-of-band garbage collection if you use ...