Run results for: array vs Float64Array vs Float32Array

Run details:

User agent: Mozilla/5.0 (Linux; Android 11; Mi 10 Pro Build/RKQ1.200826.002; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/77.0.3865.120 MQQBrowser/6.2 TBS/045709 Mobile Safari/537.36 MMWEBID/8538 MicroMessenger/8.0.6.1900(0x28000653) Process/tools WeChat/arm64 Weixin NetType/4G Language/zh_CN ABI/arm64

Browser: QQ Browser Mobile 6

Operating system: Android

Device Platform: Mobile

Date tested: 3 years ago

Test name	Executions per second
array reverse	109278.1 Ops/sec
Float64Array reverse	253901.8 Ops/sec
array i/o	661.5 Ops/sec
Float64Array i/o	654.3 Ops/sec
Float32Array reverse	268551.8 Ops/sec
Float32Array i/o	652.1 Ops/sec

Script Preparation code:

var a = [...Array(10000)].map(_ => Math.random());
var ta = (new Float64Array(10000)).map(_ => Math.random());
var tb = (new Float32Array(10000)).map(_ => Math.random());

Tests:

array reverse
a.reverse();
Float64Array reverse
ta.reverse();
array i/o
for (let i = 0; i < 10000; ++i) a[i] = a[i] + 1;
Float64Array i/o
for (let i = 0; i < 10000; ++i) ta[i] = ta[i] + 1;
Float32Array reverse
tb.reverse();
Float32Array i/o
for (let i = 0; i < 10000; ++i) tb[i] = tb[i] + 1;

Run results for: array vs Float64Array vs Float32Array

array reverse

Float64Array reverse

array i/o

Float64Array i/o

Float32Array reverse

Float32Array i/o