mirror of https://github.com/lukechilds/node.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
57 lines
1.2 KiB
57 lines
1.2 KiB
'use strict';
|
|
var common = require('../common.js');
|
|
var bench = common.createBenchmark(main, {
|
|
type: ['Uint8', 'Uint16LE', 'Uint16BE',
|
|
'Uint32LE', 'Uint32BE',
|
|
'Int8', 'Int16LE', 'Int16BE',
|
|
'Int32LE', 'Int32BE',
|
|
'Float32LE', 'Float32BE',
|
|
'Float64LE', 'Float64BE'],
|
|
millions: [1]
|
|
});
|
|
|
|
const INT8 = 0x7f;
|
|
const INT16 = 0x7fff;
|
|
const INT32 = 0x7fffffff;
|
|
const UINT8 = INT8 * 2;
|
|
const UINT16 = INT16 * 2;
|
|
const UINT32 = INT32 * 2;
|
|
|
|
var mod = {
|
|
setInt8: INT8,
|
|
setInt16: INT16,
|
|
setInt32: INT32,
|
|
setUint8: UINT8,
|
|
setUint16: UINT16,
|
|
setUint32: UINT32
|
|
};
|
|
|
|
function main(conf) {
|
|
var len = +conf.millions * 1e6;
|
|
var ab = new ArrayBuffer(8);
|
|
var dv = new DataView(ab, 0, 8);
|
|
var le = /LE$/.test(conf.type);
|
|
var fn = 'set' + conf.type.replace(/[LB]E$/, '');
|
|
|
|
if (/int/i.test(fn))
|
|
benchInt(dv, fn, len, le);
|
|
else
|
|
benchFloat(dv, fn, len, le);
|
|
}
|
|
|
|
function benchInt(dv, fn, len, le) {
|
|
var m = mod[fn];
|
|
bench.start();
|
|
for (var i = 0; i < len; i++) {
|
|
dv[fn](0, i % m, le);
|
|
}
|
|
bench.end(len / 1e6);
|
|
}
|
|
|
|
function benchFloat(dv, fn, len, le) {
|
|
bench.start();
|
|
for (var i = 0; i < len; i++) {
|
|
dv[fn](0, i * 0.1, le);
|
|
}
|
|
bench.end(len / 1e6);
|
|
}
|
|
|