runtime-perf 🚀

A lightweight, real-time performance profiler for Node.js applications that tracks function execution times, memory usage, and CPU bottlenecks with minimal overhead.

Features ✨

• ⏱️ Accurate function timing with nanosecond precision
• 📊 Automatic performance reports and flamegraphs
• 🧠 Memory usage tracking and leak detection
• 🔍 Event loop monitoring
• 💡 Works with both synchronous and async functions
• 🔧 Zero configuration required

Installation 📦

npm install runtime-perf --save-dev
# or
yarn add runtime-perf --

Basic Usage 🛠️

const { ExecutionTracker } = require('runtime-perf');

const tracker = new ExecutionTracker();

// Wrap your functions
const trackedFunction = tracker.wrapFunction(function expensiveOperation() {
  // Your code here
}, 'expensiveOperation');

// Execute
trackedFunction();

// Generate report
console.table(tracker.generateReport());

CLI Usage

npx runtime-perf monitor your-script.js
# With flamegraph generation
npx runtime-perf monitor your-script.js --flamegraph