node/benchmark/buffers/buffer-write.js at master · CombatCode/node · GitHub

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var common = require('../common.js');

var bench = common.createBenchmark(main, {

noAssert: [false, true],

buffer: ['fast', 'slow'],

type: ['UInt8', 'UInt16LE', 'UInt16BE',

'UInt32LE', 'UInt32BE',

'Int8', 'Int16LE', 'Int16BE',

'Int32LE', 'Int32BE',

'FloatLE', 'FloatBE',

'DoubleLE', 'DoubleBE'],

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 = {

writeInt8: INT8,

writeInt16BE: INT16,

writeInt16LE: INT16,

writeInt32BE: INT32,

writeInt32LE: INT32,

writeUInt8: UINT8,

writeUInt16BE: UINT16,

writeUInt16LE: UINT16,

writeUInt32BE: UINT32,

writeUInt32LE: UINT32

};

function main(conf) {

var noAssert = conf.noAssert === 'true';

var len = +conf.millions * 1e6;

var clazz = conf.buf === 'fast' ? Buffer : require('buffer').SlowBuffer;

var buff = new clazz(8);

var fn = 'write' + conf.type;

if (fn.match(/Int/))

benchInt(buff, fn, len, noAssert);

else

benchFloat(buff, fn, len, noAssert);

}

function benchInt(buff, fn, len, noAssert) {

var m = mod[fn];

bench.start();

for (var i = 0; i < len; i++) {

buff[fn](i % m, 0, noAssert);

}

bench.end(len / 1e6);

}

function benchFloat(buff, fn, len, noAssert) {

bench.start();

for (var i = 0; i < len; i++) {

buff[fn](i * 0.1, 0, noAssert);

}

bench.end(len / 1e6);

}

node/benchmark/buffers/buffer-write.js at master · CombatCode/node · GitHub

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