Benchmark: copy copy copy copy copy

Script Preparation code:

var size = 0xFFFF;
var buf = new ArrayBuffer(size);
var view = new DataView(buf);
var byte = new Uint8Array(buf);

var data = new Uint8Array(size);

for (let i = 0; i < size; i++) {
	data[i] = 100*Math.random();
}

Tests:

view.setUint8(i, data[i]);
for (let i=0; i < size; i++) { view.setUint8(i, data[i]); }
byte[i] = data[i];
for (let i=0; i < size; i++) { byte[i] = data[i]; }
byte.set(data);
byte.set(data);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
view.setUint8(i, data[i]);
byte[i] = data[i];
byte.set(data);

Fastest: N/A

Slowest: N/A

ⓘ Get performance results from real users on your website with Request Metrics.

Website Performance Monitoring by Request Metrics

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36 Edg/107.0.1391.0

Browser/OS: Chrome 107 on Windows

View result in a separate tab

Test name	Executions per second
view.setUint8(i, data[i]);	33.2 Ops/sec
byte[i] = data[i];	36.6 Ops/sec
byte.set(data);	503381.9 Ops/sec

copy copy copy copy copy (version: 0)

copy

Comparing performance of: view.setUint8(i, data[i]); vs byte[i] = data[i]; vs byte.set(data);

Created: one year ago by: Guest

Jump to the latest result

view.setUint8(i, data[i]);

byte[i] = data[i];

byte.set(data);

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A