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40 lines (31 loc) · 805 Bytes
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5-emitter.js
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40 lines (31 loc) · 805 Bytes
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'use strict';
const { EventEmitter } = require('node:events');
const memory = [];
const bytesToMb = (bytes) => Math.round(bytes / 1000, 2) / 1000;
const ee = new EventEmitter();
const timer = setInterval(() => {
ee.on('eventName', () => {});
}, 5);
setInterval(() => {
console.clear();
const usage = process.memoryUsage();
const row = {
rss: bytesToMb(usage.rss),
heapTotal: bytesToMb(usage.heapTotal),
heapUsed: bytesToMb(usage.heapUsed),
external: bytesToMb(usage.external),
listeners: ee.listeners('eventName').length
};
memory.push(row);
console.table(memory);
}, 1000);
setTimeout(() => {
clearInterval(timer);
}, 10000);
setTimeout(() => {
process.exit(0);
}, 15000);
process.on('warning', (warning) => {
console.dir(warning);
process.exit(0);
});