Run results for: repeated Math.random() vs crypto.getRandomValues()

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; rv:91.0) Gecko/20100101 Firefox/91.0

Browser: Firefox 91

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Math.random()	20883.3 Ops/sec
crypto.getRandomValues()	1523.2 Ops/sec

Script Preparation code:

var v = new Uint32Array(16384);

Tests: