mirror of
https://github.com/nodejs/node.git
synced 2024-12-01 16:10:02 +01:00
d4fcb23e38
Increase the performance and simplify the logic of Buffer#write{U}Int* and Buffer#read{U}Int* methods by placing the byte manipulation code directly inline. Also improve the speed of buffer-write benchmarks by creating a new call directly to each method by using Function() instead of calling by buff[fn]. Signed-off-by: Trevor Norris <trev.norris@gmail.com>
32 lines
885 B
JavaScript
32 lines
885 B
JavaScript
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]
|
|
});
|
|
|
|
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 = 'read' + conf.type;
|
|
|
|
buff.writeDoubleLE(0, 0, noAssert);
|
|
var testFunction = new Function('buff', [
|
|
"for (var i = 0; i !== " + len + "; i++) {",
|
|
" buff." + fn + "(0, " + JSON.stringify(noAssert) + ");",
|
|
"}"
|
|
].join("\n"));
|
|
bench.start();
|
|
testFunction(buff);
|
|
bench.end(len / 1e6);
|
|
}
|