run_profile.js

const { Session } = require('inspector');

/**
 * @param task {() => Promise<void>}
 * @returns {import('inspector').Profiler.Profile}
 */
async function runProfile(task) {
  const session = new Session();
  session.connect();
  try {
    await new Promise((resolve, reject) => {
      session.post('Profiler.enable', { enabled: true }, (err) => {
        if (err) reject(err);
        else resolve();
      });
    });

    await new Promise((resolve, reject) => {
      session.post('Profiler.start', (err) => {
        if (err) reject(err);
        else resolve();
      });
    });

    await task();

    return await new Promise((resolve, reject) => {
      session.post('Profiler.stop', (err, { profile }) => {
        if (err) reject(err);
        else resolve(profile);
      });
    });
  } finally {
    session.disconnect();
  }
}

module.exports = runProfile;