const puppeteer = require('puppeteer');

(async () => {

  const browser = await puppeteer.launch();

  const page = (await browser.pages())[0];

  await page.tracing.start({
    path: 'trace.json',
    screenshots: true,
    categories: ['disabled-by-default-v8.cpu_profiler.hires'],
  });

  const before = await page.metrics();

  await page.goto('https://ya.ru/');

  const after = await page.metrics();

  console.log({before, after});

  await page.tracing.stop();

  await browser.close();

})();