title: Express: what load can continuation-local-storage handle?
body: <p>I want to enable thread-like storage for my express app which handles ~100 to 300 API calls per minute. I've played with continuation-local-storage (and cls-hooked since I'm on Node 8.9.0) but the CPU spikes are very high (500x normal and dont level) and have crashed the server. The endpoints mostly do CPU light synchronous computation (e.g. calling API's, doing lookups, rarely I/O intensive tasks)</p>
  
  <p>Do anyone have experience running csl at scale with Express?</p>