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| Current File : //home/ubuntu/node-v16.18.1/benchmark/worker/bench-eventlooputil.js |
'use strict';
const common = require('../common.js');
const { Worker, parentPort } = require('worker_threads');
if (process.argv[2] === 'idle cats') {
return parentPort.once('message', () => {});
}
const bench = common.createBenchmark(main, {
n: [1e6],
method: [
'ELU_simple',
'ELU_passed',
],
});
function main({ method, n }) {
switch (method) {
case 'ELU_simple':
benchELUSimple(n);
break;
case 'ELU_passed':
benchELUPassed(n);
break;
default:
throw new Error(`Unsupported method ${method}`);
}
}
function benchELUSimple(n) {
const worker = new Worker(__filename, { argv: ['idle cats'] });
spinUntilIdle(worker, () => {
bench.start();
for (let i = 0; i < n; i++)
worker.performance.eventLoopUtilization();
bench.end(n);
worker.postMessage('bye');
});
}
function benchELUPassed(n) {
const worker = new Worker(__filename, { argv: ['idle cats'] });
spinUntilIdle(worker, () => {
let elu = worker.performance.eventLoopUtilization();
bench.start();
for (let i = 0; i < n; i++)
elu = worker.performance.eventLoopUtilization(elu);
bench.end(n);
worker.postMessage('bye');
});
}
function spinUntilIdle(w, cb) {
const t = w.performance.eventLoopUtilization();
if (t.idle + t.active > 0)
return process.nextTick(cb);
setTimeout(() => spinUntilIdle(w, cb), 1);
}
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