worker.startCpuProfile(name)
使用给定的 name
启动 CPU 配置文件,然后返回一个以错误或具有 stop
方法的对象完成的 Promise。调用 stop
方法将停止收集配置文件,然后返回一个 Promise,该 Promise 会以错误或配置文件数据的形式完成。
¥Starting a CPU profile with the given name
, then return a Promise that fulfills
with an error or an object which has a stop
method. Calling the stop
method will
stop collecting the profile, then return a Promise that fulfills with an error or the
profile data.
const { Worker } = require('node:worker_threads');
const worker = new Worker(`
const { parentPort } = require('worker_threads');
parentPort.on('message', () => {});
`, { eval: true });
worker.on('online', async () => {
const handle = await worker.startCpuProfile('demo');
const profile = await handle.stop();
console.log(profile);
worker.terminate();
});