Ruby Memory Leak

Debugging memory leaks in ruby.

Ruby memory leak.

Now you know what a memory leak looks like hopefully that will help you find one faster if you ever have this issue. Debugging memory leaks in ruby jonathan wallace december 15 2011 programming 3 380. Make sure memory leaks are not in your gem dependencies. In this section you will learn how to find and fix such leaks by using tool such as valgrind.

The new tooling in ruby 2 1 and up makes debugging these leaks a breeze. A memory leak is defined as memory increasing indefinitely over time. Audit a project s gemfile lock. Is there an obvious.

The best tool to find leaky gems in your dependencies. To simply print the current ruby script memory usage in the system you can use this function. Leave a comment below thanks for. If you have any interesting battle stories or tools i have forgotten to mention you would like to share please post a comment.

If you are hunting a simple memory leak in ruby i recommend my earlier article from 2015 most of it still holds. How to debug profile ruby. Thin web server is actually a big memory consumer it is not thin anymore. Do you have any questions feedback or an interesting memory leak debugging story.

A ruby application on rails or not can leak memory either in the ruby code or at the c code level. Prints memory leak information. If you believe your application has a memory leak you can test this out. I hope that next time you are stuck debugging a complex native memory leak you have an easier time.

There are few tools available however none of them works with native mri ruby 1 9 3p194. Prior to ruby 2 1 the best we could do was crawl our object space grab a snapshot wait a bit grab a second snapshot and compare. This pass the result to a form. December 15 2011.

Btw ruby 2 4 1 has a known memory leak so you may want to upgrade if you are using this specific version. Valgrind is an application for detecting c based memory leaks and race conditions. This is a parser that gem some html pages and scrape them but it eat a lot of memory not being garbage collected. 5 debugging memory leaks.

Reviewing the free memory analysis tools for mri and jruby and mentioning rubinius jonathan wallace. Unlike unmanaged memory leaks tackling managed leaks is very straight forward. Checks for memory leaks of gems in gemfile lock.