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

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:83.0) Gecko/20100101 Firefox/83.0

Browser: Firefox 83

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
Math.random()	12571.9 Ops/sec
crypto.getRandomValues()	1116.8 Ops/sec

Script Preparation code:

var v = new Uint32Array(16384);

Tests: