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DevelopmentSoftware EngineeringMemory Management

Detecting memory leaks in nodejs and V8

How to detect memory leaks using heapdump, snapshots, and profiler in nodejs/react/javascript and V8 engine
Rating: 4.0 out of 54.0 (8 ratings)
75 students
Created by Tomasz Janik
Last updated 9/2021
English
English [Auto]

What you'll learn

  • How to detect memory leaks in React/Javascript/Nodejs/V8
  • How the memory is orgnised in V8
  • How to use heapdump
  • How to take memory snapshots
  • How to use chrome developer tools to profile your application
  • How to write code that will help you find leaks instead of hiding them
  • How to read memory snapshots

Requirements

  • nodejs
  • javascript
  • chrome tools

Description

Detect memory leaks like a pro. In this course, you will learn how to connect monitoring to your application, how to take memory snapshots and most importantly, how to compare them with each other to find leaks.

You will learn how memory is organized in V8, why short-lived objects are best, and how to write code that will help you find potential memory leaks.


You will learn how to write code that should not contain any leaks, how to find existing ones, and how to write memory-efficient applications.


The entire course is based on nodejs, but these rules can be used in any language that uses the garbage collector.


We will discuss the algorithms that the V8 uses, how long it takes to free memory.


We will also cover what is included in a memory snapshot, what is contaiment, summary, and how to work with comparing them to each other.


Effective and trouble-free operation of the application is work on many levels, thanks to this course one of them will be explained and I hope it will become a little more friendly at a time when conscious memory management has gone into the background, thanks to such a great tool as GC. However, he himself is not always able to fix everything, sometimes he needs a little help.


This is why this course was created.
I belive that together we can save a lot of memory!

Who this course is for:

  • Node js/javascript programmers that are concerend about memory efficency of their application
  • Node js/javascript programmers that want to improve performance of their applications by reducing the memory usage

Instructor

Tomasz Janik
Developer
Tomasz Janik
  • 4.0 Instructor Rating
  • 8 Reviews
  • 75 Students
  • 1 Course

Hello!


I have been a programmer since 2010. I started my adventure with php, through objective-c, c#, python back to php and recently javascript. I have created many applications for various industries, from tourism, through shops, applications for company management and transport.

I have extensive experience in many areas and have seen a lot in my life. I've seen frameworks rise and fall. How dead technologies return to favor and how new technologies come and go.

After all these years, I value stability and simplicity. I hope you will take advantage of what I have learned over the years.

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