Function spinUntilIdle

benchmark/worker/bench-eventlooputil.js:56–61

(w, cb)

}

function spinUntilIdle(w, cb) {
  const t = w.performance.eventLoopUtilization();
  if (t.idle + t.active > 0)
    return process.nextTick(cb);
  setTimeout(() => spinUntilIdle(w, cb), 1);
}