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'use strict';
const SlowBuffer = require('buffer').SlowBuffer;
const common = require('../common.js');
const assert = require('assert');
const bench = common.createBenchmark(main, {
size: [16, 512, 1024, 4096, 16386],
type: ['fast', 'slow'],
method: ['for', 'forOf', 'iterator'],
n: [1e3]
});
const methods = {
'for': benchFor,
'forOf': benchForOf,
'iterator': benchIterator
};
function main(conf) {
const len = +conf.size;
const clazz = conf.type === 'fast' ? Buffer : SlowBuffer;
const buffer = new clazz(len);
buffer.fill(0);
const method = conf.method || 'for';
methods[method](buffer, conf.n);
}
function benchFor(buffer, n) {
bench.start();
for (var k = 0; k < n; k++) {
for (var i = 0; i < buffer.length; i++) {
assert(buffer[i] === 0);
}
}
bench.end(n);
}
function benchForOf(buffer, n) {
bench.start();
for (var k = 0; k < n; k++) {
for (const b of buffer) {
assert(b === 0);
}
}
bench.end(n);
}
function benchIterator(buffer, n) {
bench.start();
for (var k = 0; k < n; k++) {
const iter = buffer[Symbol.iterator]();
var cur = iter.next();
while (!cur.done) {
assert(cur.value === 0);
cur = iter.next();
}
}
bench.end(n);
}
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