Run results for: OnScrenn vs OffScreen canvas measureText performance

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36

Browser: Chrome 132

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one month ago

Test name	Executions per second
Canvas	2074491.1 Ops/sec
OffscreenCanvas	2205193.0 Ops/sec

HTML Preparation code:

<div id="wrapper"></div>

Script Preparation code:

var canvas = document.createElement('canvas');
var context = canvas.getContext('2d');
document.getElementById('wrapper').append(canvas);

var offscreenCanvas = document.createElement('canvas');
var offscreenContext = offscreenCanvas.getContext('2d');

Tests:

Canvas
context.measureText('m');
OffscreenCanvas
offscreenContext.measureText('m');

Run results for: OnScrenn vs OffScreen canvas measureText performance

DomCanvas vs OffscreenCanvas

Canvas

OffscreenCanvas