Run results for: Date.now() vs Performance.measure() (Updated)

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; SAMSUNG SM-J810G) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/16.0 Chrome/92.0.4515.166 Mobile Safari/537.36

Browser: Chrome Mobile 92

Operating system: Android

Device Platform: Mobile

Date tested: 2 months ago

Test name	Executions per second
performance.mark	11210.3 Ops/sec
Date.now	44211.5 Ops/sec
performance.mark + performance.measure	8591.5 Ops/sec
performance.measure	21988.8 Ops/sec

Script Preparation code:

var times = [];

Tests:

performance.mark
var i = Math.random() + '' + Date.now(); performance.mark(i + 'start'); performance.mark(i + 'end' );
Date.now
var i = Math.random() + '' + Date.now(); times.push(Date.now() + 'start' + i); times.push(Date.now() + 'end' + i);
performance.mark + performance.measure
var i = Math.random() + '' + Date.now(); performance.mark(i + 'start'); performance.mark(i + 'end' ); performance.measure(i, i + 'start', i + 'end')
performance.measure
const now = performance.now(); performance.measure('measure', { start: now - 1000, end: now, detail: { some: 'detail' } });

Run results for: Date.now() vs Performance.measure() (Updated)

Performance measure can be slow???

performance.mark

Date.now

performance.mark + performance.measure

performance.measure