v8-profiler-next

v8-profiler-next

I. Quick Start

take cpu profile

'use strict';
const v8Profiler = require('v8-profiler-next');
const title = '';
// ex. 5 mins cpu profile
v8Profiler.startProfiling(title, true);
setTimeout(() => {
	const profiler = v8Profiler.stopProfiling(title);
	profiler.delete();
	console.log(profiler);
}, 5 * 60 * 1000);

take heapsnapshot

'use strict';
const v8Profiler = require('v8-profiler-next');
const snapshot = v8Profiler.takeSnapshot();
// 1. not as stream
snapshot.export(function (error, result) {
	if (error){
		console.error(error);
		return;
	}
	console.log(result);
	snapshot.delete();
});
// 2. as stream
const transform = snapshot.export();
transform.pipe(process.stdout);
transform.on('finish', snapshot.delete.bind(snapshot));

II. License

MIT License

Copyright (c) 2017 team of v8-profiler, hyj1991