Run results for: OffscreenCanvas measureText Japanese

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.4 Safari/605.1.15

Browser: Safari 18

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

OffscreenCanvas

344K/s

Canvas

342K/s

View exact numbers

Test name	Executions per second
✓ OffscreenCanvas	344,091 Ops/sec
Canvas	342,453 Ops/sec

Script Preparation code:

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

Tests:

Canvas
context.measureText('Hello, World! あいうえお');
OffscreenCanvas
offscreenContext.measureText('Hello, World! あいうえお');

Run results for: OffscreenCanvas measureText Japanese

DomCanvas vs OffscreenCanvas

Canvas

OffscreenCanvas