<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"> <html> <head> <title>Canvas 2d Context Font Property Speed</title> </head> <body> <canvas id='thecanvas' height=100 width=100/> <script> var canvas = document.getElementById('thecanvas'); var context = canvas.getContext('2d'); var t0 = Date.now(); for (var i = 0; i < 1000; i++) { context.font = 'bold 13px Arial'; } alert('Elapsed for 1000 font settings: ' + (Date.now() - t0)); </script> </body> </html>