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| Current File : //proc/self/root/home/ubuntu/node-v16.18.1/benchmark/buffers/buffer-iterate.js |
'use strict';
const SlowBuffer = require('buffer').SlowBuffer;
const common = require('../common.js');
const assert = require('assert');
const bench = common.createBenchmark(main, {
size: [512, 4096, 16386],
type: ['fast'],
method: ['for', 'forOf', 'iterator'],
n: [1e3]
});
const methods = {
'for': benchFor,
'forOf': benchForOf,
'iterator': benchIterator
};
function main({ size, type, method, n }) {
const buffer = type === 'fast' ?
Buffer.alloc(size) :
SlowBuffer(size).fill(0);
const fn = methods[method];
bench.start();
fn(buffer, n);
bench.end(n);
}
function benchFor(buffer, n) {
for (let k = 0; k < n; k++) {
for (let i = 0; i < buffer.length; i++) {
assert(buffer[i] === 0);
}
}
}
function benchForOf(buffer, n) {
for (let k = 0; k < n; k++) {
for (const b of buffer) {
assert(b === 0);
}
}
}
function benchIterator(buffer, n) {
for (let k = 0; k < n; k++) {
const iter = buffer[Symbol.iterator]();
let cur = iter.next();
while (!cur.done) {
assert(cur.value === 0);
cur = iter.next();
}
}
}
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