winston-benchmark.js

(function () {
  "use strict";
  const winston = require("winston");

  let transport = new winston.transports.Console();

  let logger = winston.createLogger({
    level: "error",
    transports: [transport]
  });

  async function wait(ms) {
    return new Promise((resolve) => {
      setTimeout(resolve, ms);
    });
  }

  const log = () => {
    let message = "BENCHMARK LOG";
    let payload = { count: iter };
    logger.debug(message, payload);
  };

  const max = 500000;
  let iter = 0;

  const loop = () => {
    while (iter <= max) {
      log(iter);

      iter++;
      if (iter === max) {
        console.log("end iter");

        // get mem usage
        const used = process.memoryUsage();
        for (let key in used) {
          console.log(
            `${key} ${Math.round((used[key] / 1024 / 1024) * 100) / 100} MB`
          );
        }
      }
    }

    console.log("done while");
  };

  const stop = async () => {
    await wait(30000);
    console.log("Stopped");
  };

  loop();
  stop();
})();