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b62343d83c
Add default values to use for `type` and `method` in `buffer` benchmarks when the provided configuration value is an empty string. This is primarily useful for testing, so the test can request a single iteration without having to worry about providing different valid values for the different benchmarks. While making this change, some `var` instances in immediately surrounding code were changed to `const`. In some cases, `var` had been preserved so that the benchmarks would continue to run in versions of Node.js prior to 4.0.0. However, now that `const` has been introduced into the benchmark `common` module, the benchmarks will no longer run with those versions of Node.js anyway. PR-URL: https://github.com/nodejs/node/pull/15175 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com
69 lines
1.2 KiB
JavaScript
69 lines
1.2 KiB
JavaScript
'use strict';
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var SlowBuffer = require('buffer').SlowBuffer;
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var common = require('../common.js');
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var assert = require('assert');
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var bench = common.createBenchmark(main, {
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size: [16, 512, 1024, 4096, 16386],
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type: ['fast', 'slow'],
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method: ['for', 'forOf', 'iterator'],
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n: [1e3]
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});
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var methods = {
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'for': benchFor,
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'forOf': benchForOf,
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'iterator': benchIterator
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};
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function main(conf) {
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const len = +conf.size;
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const clazz = conf.type === 'fast' ? Buffer : SlowBuffer;
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const buffer = new clazz(len);
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buffer.fill(0);
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const method = conf.method || 'for';
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methods[method](buffer, conf.n);
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}
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function benchFor(buffer, n) {
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bench.start();
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for (var k = 0; k < n; k++) {
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for (var i = 0; i < buffer.length; i++) {
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assert(buffer[i] === 0);
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}
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}
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bench.end(n);
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}
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function benchForOf(buffer, n) {
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bench.start();
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for (var k = 0; k < n; k++) {
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for (var b of buffer) {
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assert(b === 0);
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}
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}
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bench.end(n);
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}
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function benchIterator(buffer, n) {
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bench.start();
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for (var k = 0; k < n; k++) {
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var iter = buffer[Symbol.iterator]();
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var cur = iter.next();
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while (!cur.done) {
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assert(cur.value === 0);
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cur = iter.next();
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}
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}
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bench.end(n);
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}
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