Run results for: forwardRef perf vs simple

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36

Browser: Chrome 123

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 7 months ago

Test name	Executions per second
Component With forwardRef	476829.7 Ops/sec
Normal component	505664.6 Ops/sec
Normal with list	480138.9 Ops/sec
forwardRef list	507346.7 Ops/sec

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.13.1/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.13.1/umd/react-dom.production.min.js"></script>
<div id="root-edu"></div>

Script Preparation code:

var people = [{a:1}, {a:1},{a:1},{a:1},{a:1},{a:1},{a:1},{a:1},{a:1},{a:1},{a:1},{a:1},{a:1},{a:1},{a:1},{a:1},{a:1},{a:1},{a:1},{a:1},{a:1},{a:1},{a:1},{a:1},{a:1},{a:1},{a:1},{a:1},{a:1},{a:1}]
var root = document.getElementById('root-edu');

Tests:

Component With forwardRef
const ComponentWithForwardRef = React.forwardRef((props, ref) => ( React.createElement('div', { ref: ref }, 'Component using forwardRef' ) )); var benchmarkTest = () => { ReactDOM.render(React.createElement(ComponentWithForwardRef), root); }; benchmarkTest();
Normal component
const ComponentWithoutForwardRef = (props) => ( React.createElement('div', null, // Your component content 'Component without forwardRef' ) ); var benchmarkTest = () => { ReactDOM.render(React.createElement(ComponentWithoutForwardRef), root); }; benchmarkTest();
Normal with list
const ComponentWithForwardRef = React.forwardRef((props, ref) => ( React.createElement('div', { ref: ref }, 'Component using forwardRef' ) )); const App = () => ( React.createElement('div', null, people.map((person, index) => ( React.createElement(ComponentWithForwardRef, { key: index }) )) ) ); ReactDOM.render(React.createElement(ComponentWithForwardRef), root);
forwardRef list
const ComponentWithoutForwardRef = (props) => ( React.createElement('div', null, // Your component content 'Component without forwardRef' ) ); const App = () => ( React.createElement('div', null, people.map((person, index) => ( React.createElement(ComponentWithoutForwardRef, { key: index }) )) ) ); ReactDOM.render(React.createElement(ComponentWithoutForwardRef), root);

Run results for: forwardRef perf vs simple

Component With forwardRef

Normal component

Normal with list

forwardRef list