react-native-web/performance/modules/createRenderBenchmark.js

import benchmark from './benchmark';
import ReactDOM from 'react-dom';

const node = document.querySelector('.root');

const createRenderBenchmark = ({ description, getElement, name, runs }) => () => {
  const setup = () => {};
  const teardown = () => ReactDOM.unmountComponentAtNode(node);

  return benchmark({
    name,
    description,
    runs,
    setup,
    teardown,
    task: () => ReactDOM.render(getElement(), node)
  });
};

export default createRenderBenchmark;