@datadog/native-metrics

Garbage Collection Metrics

This feature allows you to monitor garbage collection events in your Node.js application. The event listener logs information about each garbage collection event.

const NativeMetrics = require('@datadog/native-metrics');
const metrics = new NativeMetrics();
metrics.on('gc', (info) => {
  console.log('GC event info:', info);
});

Heap Statistics

This feature provides heap statistics from the V8 engine at regular intervals. It can be used to monitor the memory usage of your Node.js application.

const NativeMetrics = require('@datadog/native-metrics');
const metrics = new NativeMetrics();
setInterval(() => {
  const stats = metrics.getHeapStatistics();
  console.log('Heap stats:', stats);
}, 10000);

Event Loop Lag

This feature measures the lag in the Node.js event loop, which can be an indicator of the application's responsiveness.

const NativeMetrics = require('@datadog/native-metrics');
const metrics = new NativeMetrics();
setInterval(() => {
  const lag = metrics.getLoopDelay();
  console.log('Event loop lag:', lag);
}, 10000);