Next-Gen Flame Graphs: Making Node.js Performance Profiling Actually Work
Remember when profiling Node.js meant wrestling with perf, sed scripts, and mysterious V8 internals? Traditional flame graph generation has been like performing surgery with a rusty spoon, requiring kernel-level tools and arcane command-line incantations. The barrier to entry is sky high. The time to insight is glacial.
We've completely reimagined this at Platformatic with @platformatic/flame - a zero-config profiling tool that works instantly. Just run flame run server.js and get production-grade flame graphs. Combined with our WebGL-accelerated React component library (react-pprof), we handle massive datasets with buttery-smooth 60fps interactions. This isn't just another tool - it's about democratizing performance analysis.
When your Auth Service hits 96% Event Loop Utilization, you need answers NOW. I'll show you our ecosystem-compatible architecture, how we profile microservices in-memory with Watt, and real production cases where this saved millions in infrastructure costs. Performance is everybody's responsibility, but the tools have been nobody's friend until now.
JavaScript Monthly London Meetup
Javascript evolution has sped up (a lot) in recent years and event the most veterans developers find it hard to keep up with the latest trends. This meetup group aims to bring you monthly bite-sized updates on the world of Javascript along with a healthy dose of nice people, beer and pizza.
- Please use your full name when registering, as some of our venues require a full list of attendees beforehand. You have an idea and you want to be a speaker?
We are always looking for more speakers - submit your talk here (https://docs.google.com/forms/d/e/1FAIpQLSdFaatfveOUbrmer47jYb5J4J4ttxAFc1CgTjUDltBXmDOJmg/viewform)
High-Performance Node.js: From Event Loop Mastery to Production Observability
What You'll Learn:
Event Loop Optimization & Performance - Understand how the event loop really works and learn Matteo Collina's proven techniques for preventing blocking operations. We'll explore the perf_hooks module for identifying performance bottlenecks, plus practical strategies for handling CPU-intensive tasks without freezing your application.
Strategic Caching Patterns - Implement multi-layered caching strategies using Redis, in-memory stores, and HTTP caching headers. Learn when to cache, what to cache, and how to invalidate cache effectively in distributed systems.
Promise Pitfalls & Alternatives - Discover when promises become performance liabilities and explore alternatives like streams and async iterators. We'll cover memory management and the hidden costs of promise chains in high-throughput scenarios.
Worker Threads & Multithreading - Master Node.js worker threads for CPU-bound tasks, following best practices for thread pool management and data sharing. Learn when to use worker threads versus child processes, and how to architect applications that leverage multiple cores effectively.
Production Metrics & Monitoring - Implement comprehensive application metrics using Prometheus and learn to instrument your code for meaningful observability. We'll cover custom metrics, histograms, and performance-tracking patterns used in production environments.
OpenTelemetry Integration - Setup distributed tracing with OpenTelemetry to track requests across microservices. Learn to integrate with distributed systems while maintaining performance and gaining deep insights into your application's behavior through standardized telemetry collection.
By the end of this workshop, you'll have the tools and knowledge to build Node.js applications that perform well under pressure, scale horizontally, and provide the observability needed for production operations.
Prerequisites: Solid understanding of JavaScript, Node.js fundamentals, and basic async/await patterns.
Matteo Collina
Platform Sponsors
Torc is a community-first platform bringing together remote-first software engineer and developer opportunities from across the globe. Join a network that’s all about connection, collaboration, and finding your next big move — together.
Join our community today!
Don't let broken lines of code, busted API calls, and crashes ruin your app. Join the 4M developers and 90K organizations who consider Sentry “not bad” when it comes to application monitoring. Use code “guild” for 3 free months of the team plan.
https://sentry.io
Next-Gen Flame Graphs: Making Node.js Performance Profiling Actually Work
Remember when profiling Node.js meant wrestling with perf, sed scripts, and mysterious V8 internals? Traditional flame graph generation has been like performing surgery with a rusty spoon, requiring kernel-level tools and arcane command-line incantations. The barrier to entry is sky high. The time to insight is glacial.
We've completely reimagined this at Platformatic with @platformatic/flame - a zero-config profiling tool that works instantly. Just run flame run server.js and get production-grade flame graphs. Combined with our WebGL-accelerated React component library (react-pprof), we handle massive datasets with buttery-smooth 60fps interactions. This isn't just another tool - it's about democratizing performance analysis.
When your Auth Service hits 96% Event Loop Utilization, you need answers NOW. I'll show you our ecosystem-compatible architecture, how we profile microservices in-memory with Watt, and real production cases where this saved millions in infrastructure costs. Performance is everybody's responsibility, but the tools have been nobody's friend until now.
JavaScript Monthly London Meetup
Javascript evolution has sped up (a lot) in recent years and event the most veterans developers find it hard to keep up with the latest trends. This meetup group aims to bring you monthly bite-sized updates on the world of Javascript along with a healthy dose of nice people, beer and pizza.
- Please use your full name when registering, as some of our venues require a full list of attendees beforehand. You have an idea and you want to be a speaker?
We are always looking for more speakers - submit your talk here (https://docs.google.com/forms/d/e/1FAIpQLSdFaatfveOUbrmer47jYb5J4J4ttxAFc1CgTjUDltBXmDOJmg/viewform)
High-Performance Node.js: From Event Loop Mastery to Production Observability
What You'll Learn:
Event Loop Optimization & Performance - Understand how the event loop really works and learn Matteo Collina's proven techniques for preventing blocking operations. We'll explore the perf_hooks module for identifying performance bottlenecks, plus practical strategies for handling CPU-intensive tasks without freezing your application.
Strategic Caching Patterns - Implement multi-layered caching strategies using Redis, in-memory stores, and HTTP caching headers. Learn when to cache, what to cache, and how to invalidate cache effectively in distributed systems.
Promise Pitfalls & Alternatives - Discover when promises become performance liabilities and explore alternatives like streams and async iterators. We'll cover memory management and the hidden costs of promise chains in high-throughput scenarios.
Worker Threads & Multithreading - Master Node.js worker threads for CPU-bound tasks, following best practices for thread pool management and data sharing. Learn when to use worker threads versus child processes, and how to architect applications that leverage multiple cores effectively.
Production Metrics & Monitoring - Implement comprehensive application metrics using Prometheus and learn to instrument your code for meaningful observability. We'll cover custom metrics, histograms, and performance-tracking patterns used in production environments.
OpenTelemetry Integration - Setup distributed tracing with OpenTelemetry to track requests across microservices. Learn to integrate with distributed systems while maintaining performance and gaining deep insights into your application's behavior through standardized telemetry collection.
By the end of this workshop, you'll have the tools and knowledge to build Node.js applications that perform well under pressure, scale horizontally, and provide the observability needed for production operations.
Prerequisites: Solid understanding of JavaScript, Node.js fundamentals, and basic async/await patterns.
Matteo CollinaPlatform Sponsors
Torc is a community-first platform bringing together remote-first software engineer and developer opportunities from across the globe. Join a network that’s all about connection, collaboration, and finding your next big move — together.
Join our community today!
Don't let broken lines of code, busted API calls, and crashes ruin your app. Join the 4M developers and 90K organizations who consider Sentry “not bad” when it comes to application monitoring. Use code “guild” for 3 free months of the team plan.
https://sentry.io
Get in touch!
hi@guild.host