Benchmark: Date.now() vs Performance.measure() vs Performance.now()

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.now()
const start = performance.now() const end = Math.floor(performance.now() - start)

Rendered benchmark preparation results:

Previous results

Test case name	Result
performance.mark
Date.now
performance.mark + performance.measure
performance.now()

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36

Browser/OS: Chrome 109 on Mac OS X 10.15.7

Test name	Executions per second
performance.mark	333762.2 Ops/sec
Date.now	1083358.0 Ops/sec
performance.mark + performance.measure	216007.0 Ops/sec
performance.now()	2319303.0 Ops/sec

Date.now() vs Performance.measure() vs Performance.now() (version: 0)