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Documentation

throttleCPU(cpuProfile)

Open source

throttleCPU(cpuProfile)

Throttles the CPU in Chrome/Chromium to slow it down by the specified rate in cpuProfile.

Parameter	Type	Default	Description
cpuProfile	CPUProfile	`null`	This is a mandatory parameter.
cpuProfile.rate	number	`1`	rate as a slowdown factor (1 is no throttle, 2 is 2x slowdown, etc).

Example

import { browser } from 'k6/experimental/browser';

export const options = {
  scenarios: {
    browser: {
      executor: 'shared-iterations',
      options: {
        browser: {
          type: 'chromium',
        },
      },
    },
  },
};

export default async function () {
  const context = browser.newContext();
  const page = context.newPage();

  try {
    page.throttleCPU({ rate: 4 });

    await page.goto('https://test.k6.io/', { waitUntil: 'networkidle' });
  } finally {
    page.close();
  }
}