Full Stack Fest 2015: How to Performance, by Eileen Uchitelle





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Published on Sep 25, 2015

A talk from Full Stack Fest 2015 (http://fullstackfest.com/)

Understanding performance output can feel like reading tea leaves. It makes sense to a few people, but many of us are left in the dark; overwhelmed and frustrated by the data. On top of that there are a ton of performance tools to choose from; StackProf, RubyProf, AllocationTracer. Where do you even start?

While working on speeding up integration tests in Rails source, I learned that the key to improving performance of Ruby code is having a baseline, not relying on one profiler and understanding the advantages and limitations of your tools. By utilizing these methods integration test are now 3 times faster than they were in Rails 4.2.0, with more improvements being made every day.

In this talk we will not only look at how to read performance output, but when and how to use the right profilers for the job. We’ll discuss a variety of methods and techniques for benchmarking and profiling so you can get the most out of each performance tool.


Recorded & produced by El Cocu (http://elcocu.com)

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