Node Performance and Security Training comes to London

I’ve seen an app that has terrible performance. It’s written in Node. Ergo Node doesn’t scale. Q.E.D.

Something like this happens frequently on Twitter and Hacker News — mostly because performance is usually an after-thought: often code gets deployed without being properly benchmarked (or tested for security).

When developers hit a scalability problem they tend to:

  1. blame the host
  2. blame the platform
  3. blame the database
  4. blame the platform again
  5. blame someone else’s code
  6. try to guess and fix
  7. problem wasn’t fixed?
  • iterations < 10 ? go to 1

What we need is less of this:

and more of this:

To avoid this:

YLD is teaming up with ^Lift Security to deliver a one day training on Node.js performance and security in London on September 16th.

Delivered by Matthew Lowe and Pedro Teixeira, with a little help from David Dias, Adam Baldwin and Luke Bond, you will have the opportunity to learn about:


  • Defining and measuring the performance of a Node app
  • Techniques for monitoring
  • Understanding the Event Loop
  • Measuring Event Loop Lag
  • Understanding what the CPU is doing using Dtrace and V8 profiling
  • How Garbage Collection works and its impact on performance
  • How to use tools like Heap-dump and MDB to analyse V8 memory
  • Fixing I/O-bound processes
  • Fixing CPU-bound processes
  • Fixing memory-bound processes
  • Techniques to improve performance of hot code paths


  • Approaches for building securely with both Hapi and Express
  • Authentication, Authorisation and Session Management
  • Handling Sensitive Data
  • Cross-Site Scripting (XSS)
  • Cross-Site Request Forgery (CSRF)
  • SQL Injection / Command Injection
  • Directory Traversal
  • Mass Assignment
  • Security Headers
  • Security Misconfiguration
  • Using the Node Security Project to identify known vulnerabilities

Sittings are limited, reserve yours here.

Published by Pedro Teixeira on YLD Engineering Blog

Written by YLDSeptember 4th, 2014

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