Run results for: Math.random vs crypto.getRandom sizes

Run details:

User agent: Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:81.0) Gecko/20100101 Firefox/81.0

Browser: Firefox 81

Operating system: Fedora

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
Math.random()	140248944.0 Ops/sec
crypto.getRandomValues()	626406.4 Ops/sec
crypto.getRandomValues() UINT	720799.4 Ops/sec
crypto.getRandomValues() UINT8	621109.2 Ops/sec

Tests:

Math.random()
Math.random()
crypto.getRandomValues()
crypto.getRandomValues(new Uint32Array(1))[0] / 4294967296
crypto.getRandomValues() UINT
crypto.getRandomValues(new Int32Array(1))[0] / 4294967296
crypto.getRandomValues() UINT8
crypto.getRandomValues(new Uint8Array(1))[0] / 4294967296