performance-profiling

Profile Node.js and web apps to identify CPU and memory bottlenecks.

20|3|Updated Apr 30, 2026

Search Tags:#performance #profiling #lighthouse #node.js #bundle-analysis #memory-leaks #clinic

Ready to run

npx skills add https://github.com/DVNghiem/FlowDeck --skill performance-profiling-dvnghiem

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: performance-profiling
Source: https://github.com/DVNghiem/FlowDeck/tree/main/src/skills/performance-profiling
Command: npx skills add https://github.com/DVNghiem/FlowDeck --skill performance-profiling-dvnghiem

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Profiling and diagnosing performance bottlenecks in Node.js and web applications to guide targeted optimizations.

Core Features & Use Cases

Establish baseline measurements, profile CPU and memory usage, detect bottlenecks, and verify improvement.
Leverage tools like Clinic.js, Lighthouse, and bundle analysis to quantify performance and surface N+1 queries or render inefficiencies.
Real-world scenario: before a production deployment of performance-sensitive changes, run profiling to confirm improvements with numbers.

Quick Start

Run a baseline profiling session against your app to identify the top CPU and memory bottlenecks before making changes.

Frequently Asked Questions about performance-profiling

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I identify performance bottlenecks in Node.js and web applications?▼

Profile performance bottlenecks by establishing baseline measurements and using Node.js profiler, Clinic.js, and Lighthouse to pinpoint CPU, memory, and rendering inefficiencies across your web apps and APIs.

What's the best way to profile CPU and memory usage before a production deployment?▼

Profile CPU and memory usage pre-deployment by running a systematic workflow: baseline measurement, profiling, bottleneck identification, fix implementation, and post-change verification to confirm performance improvements with numbers.

How does bundle analysis help diagnose web app rendering bottlenecks?▼

Bundle analysis diagnoses rendering bottlenecks by quantifying frontend performance and surfacing render inefficiencies, allowing you to target specific optimizations before verifying the post-change performance improvements.

Why does my Node.js application have memory leaks and how can I detect them?▼

Detect memory leaks by profiling memory usage with Clinic.js during development or staging to establish a baseline and pinpoint abnormal allocation patterns before implementing targeted fixes.

Can I use Lighthouse to profile performance for staging APIs?▼

Yes, you can use Lighthouse alongside Node.js profiler and Clinic.js during staging to profile performance-sensitive changes, diagnose bottlenecks, and verify improvements in web applications and APIs.

Do I need baseline measurements to fix performance bottlenecks?▼

Yes, baseline measurements are required to quantify performance accurately and verify post-change improvements after fixing CPU, memory, or rendering bottlenecks in your web applications and APIs.