mirror of
https://github.com/nodejs/node.git
synced 2024-11-30 15:30:56 +01:00
22b84e6216
Improvements: * floating point operations are approx 4x's faster * Now write quiet NaN's * all read/write on floating point now done in C, so no more need for lib/buffer_ieee754.js * float values have more accurate min/max value checks * add additional benchmarks for buffers read/write * created benchmark/_bench_timer.js which is a simple library that can be included into any benchmark and provides an intelligent tracker for sync and async tests * add benchmarks for DataView set methods * add checks and tests to make sure offset is greater than 0
105 lines
2.0 KiB
JavaScript
105 lines
2.0 KiB
JavaScript
const LEN = 1e7;
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const INT8 = 0x7f;
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const INT16 = 0x7fff;
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const INT32 = 0x7fffffff;
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const UINT8 = INT8 * 2;
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const UINT16 = INT16 * 2;
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const UINT32 = INT32 * 2;
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const noAssert = process.argv[3] == 'true' ? true
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: process.argv[3] == 'false' ? false
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: undefined;
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var timer = require('./_bench_timer');
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var buff = (process.argv[2] == 'slow') ?
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(new require('buffer').SlowBuffer(8)) :
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(new Buffer(8));
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var dv = new DataView(buff);
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var i;
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timer('setUint8', function() {
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for (i = 0; i < LEN; i++) {
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dv.setUint8(0, i % UINT8);
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}
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});
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timer('setUint16 - LE', function() {
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for (i = 0; i < LEN; i++) {
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dv.setUint16(0, i % UINT16, true);
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}
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});
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timer('setUint16 - BE', function() {
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for (i = 0; i < LEN; i++) {
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dv.setUint16(0, i % UINT16);
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}
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});
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timer('setUint32 - LE', function() {
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for (i = 0; i < LEN; i++) {
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dv.setUint32(0, i % UINT32, true);
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}
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});
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timer('setUint32 - BE', function() {
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for (i = 0; i < LEN; i++) {
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dv.setUint32(0, i % UINT32);
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}
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});
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timer('setInt8', function() {
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for (i = 0; i < LEN; i++) {
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dv.setInt8(0, i % INT8);
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}
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});
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timer('setInt16 - LE', function() {
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for (i = 0; i < LEN; i++) {
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dv.setInt16(0, i % INT16, true);
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}
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});
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timer('setInt16 - BE', function() {
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for (i = 0; i < LEN; i++) {
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dv.setInt16(0, i % INT16);
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}
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});
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timer('setInt32 - LE', function() {
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for (i = 0; i < LEN; i++) {
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dv.setInt32(0, i % INT32, true);
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}
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});
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timer('setInt32 - BE', function() {
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for (i = 0; i < LEN; i++) {
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dv.setInt32(0, i % INT32);
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}
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});
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timer('setFloat32 - LE', function() {
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for (i = 0; i < LEN; i++) {
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dv.setFloat32(0, i * 0.1, true);
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}
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});
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timer('setFloat32 - BE', function() {
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for (i = 0; i < LEN; i++) {
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dv.setFloat32(0, i * 0.1);
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}
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});
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timer('setFloat64 - LE', function() {
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for (i = 0; i < LEN; i++) {
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dv.setFloat64(0, i * 0.1, true);
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}
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});
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timer('setFloat64 - BE', function() {
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for (i = 0; i < LEN; i++) {
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dv.setFloat64(0, i * 0.1);
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}
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});
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