current/benchmark/timers/timers-timeout-unpooled.js
'use strict';
const common = require('../common.js');
// The following benchmark sets up n * 1e6 unpooled timeouts,
// then measures their execution on the next uv tick
const bench = common.createBenchmark(main, {
n: [1e6],
});
function main({ n }) {
let count = 0;
// Function tracking on the hidden class in V8 can cause misleading
// results in this benchmark if only a single function is used —
// alternate between two functions for a fairer benchmark
function cb() {
count++;
if (count === n)
bench.end(n);
}
function cb2() {
count++;
if (count === n)
bench.end(n);
}
for (let i = 0; i < n; i++) {
// unref().ref() will cause each of these timers to
// allocate their own handle
setTimeout(i % 2 ? cb : cb2, 1).unref().ref();
}
bench.start();
}