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bench: Add buffers/dataview_set

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This commit is contained in:
isaacs 2013-02-11 22:01:50 -08:00
parent 56b22956ad
commit 3f67a48dd4
2 changed files with 57 additions and 104 deletions
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57
benchmark/buffers/dataview_set.js Normal file
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@ -0,0 +1,57 @@
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);
}

104
benchmark/dataview_set.js
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@ -1,104 +0,0 @@
const LEN = 1e7;
const INT8 = 0x7f;
const INT16 = 0x7fff;
const INT32 = 0x7fffffff;
const UINT8 = INT8 * 2;
const UINT16 = INT16 * 2;
const UINT32 = INT32 * 2;
const noAssert = process.argv[3] == 'true' ? true
: process.argv[3] == 'false' ? false
: undefined;
var timer = require('./_bench_timer');
var buff = (process.argv[2] == 'slow') ?
(new require('buffer').SlowBuffer(8)) :
(new Buffer(8));
var dv = new DataView(buff);
var i;
timer('setUint8', function() {
for (i = 0; i < LEN; i++) {
dv.setUint8(0, i % UINT8);
}
});
timer('setUint16 - LE', function() {
for (i = 0; i < LEN; i++) {
dv.setUint16(0, i % UINT16, true);
}
});
timer('setUint16 - BE', function() {
for (i = 0; i < LEN; i++) {
dv.setUint16(0, i % UINT16);
}
});
timer('setUint32 - LE', function() {
for (i = 0; i < LEN; i++) {
dv.setUint32(0, i % UINT32, true);
}
});
timer('setUint32 - BE', function() {
for (i = 0; i < LEN; i++) {
dv.setUint32(0, i % UINT32);
}
});
timer('setInt8', function() {
for (i = 0; i < LEN; i++) {
dv.setInt8(0, i % INT8);
}
});
timer('setInt16 - LE', function() {
for (i = 0; i < LEN; i++) {
dv.setInt16(0, i % INT16, true);
}
});
timer('setInt16 - BE', function() {
for (i = 0; i < LEN; i++) {
dv.setInt16(0, i % INT16);
}
});
timer('setInt32 - LE', function() {
for (i = 0; i < LEN; i++) {
dv.setInt32(0, i % INT32, true);
}
});
timer('setInt32 - BE', function() {
for (i = 0; i < LEN; i++) {
dv.setInt32(0, i % INT32);
}
});
timer('setFloat32 - LE', function() {
for (i = 0; i < LEN; i++) {
dv.setFloat32(0, i * 0.1, true);
}
});
timer('setFloat32 - BE', function() {
for (i = 0; i < LEN; i++) {
dv.setFloat32(0, i * 0.1);
}
});
timer('setFloat64 - LE', function() {
for (i = 0; i < LEN; i++) {
dv.setFloat64(0, i * 0.1, true);
}
});
timer('setFloat64 - BE', function() {
for (i = 0; i < LEN; i++) {
dv.setFloat64(0, i * 0.1);
}
});