measure.js

const os = require("os");
const {
  getConfig,
  log,
  hash,
  read,
  requestDns,
  requestIP
} = require("./utils");

const cpus = os.cpus().length;
const DEFAULT_THREADPOOL_SIZE = 4;

const config = getConfig({
  simple: {
    // UV_THREADPOOL_SIZE: 4,
    work: [hash]
  },
  single: {
    UV_THREADPOOL_SIZE: 1,
    work: [hash]
  },
  queue: {
    UV_THREADPOOL_SIZE: 1,
    work: [hash, hash]
  },
  pool: {
    // UV_THREADPOOL_SIZE: 4,
    work: Array(DEFAULT_THREADPOOL_SIZE).fill(hash)
  },
  "pool+1": {
    // UV_THREADPOOL_SIZE: 1,
    work: Array(DEFAULT_THREADPOOL_SIZE + 1).fill(hash)
  },
  "2*pool": {
    // UV_THREADPOOL_SIZE: 4,
    work: Array(DEFAULT_THREADPOOL_SIZE * 2).fill(hash)
  },
  cpus: {
    UV_THREADPOOL_SIZE: cpus,
    work: Array(cpus).fill(hash)
  },
  "cpus-2": {
    UV_THREADPOOL_SIZE: cpus - 2,
    work: Array(cpus - 2).fill(hash)
  },
  quiz: {
    // UV_THREADPOOL_SIZE: 4,
    work: [
      read,
      ...Array(DEFAULT_THREADPOOL_SIZE).fill(hash),
      requestDns,
      requestIP
    ]
  }
});

const { UV_THREADPOOL_SIZE, work } = config;

if (UV_THREADPOOL_SIZE) {
  process.env.UV_THREADPOOL_SIZE = UV_THREADPOOL_SIZE;
}

console.log(`CPUs: ${cpus}`);
console.log(
  `UV_THREADPOOL_SIZE: ${process.env.UV_THREADPOOL_SIZE ||
    DEFAULT_THREADPOOL_SIZE}`
);

for (let i = 0; i < work.length; i++) {
  log(work[i]);
}