performance-post-block-3.js

function hrMillis(measure) {
  return (measure[0] * 1000) + (measure[1] / 1e6);
}

const databaseStartTime = process.hrtime();
await runTheDatabaseCall();
const databaseMeasure = process.hrtime(databaseStartTime);

const analyticsStartTime = process.hrtime();
await analyticsCall();
const analyticsMeasure = process.hrtime(analyticsStartTime);

const databaseMillis = hrMillis(databaseMeasure);
const analyticsMillis = hrMillis(analyticsMeasure);

console.log([databaseMillis, analyticsMillis]);
// [ 791.209319, 321.346743 ]