Discrepancies between documented and observed behaviors
Excerpts from Heroku’s docs:
The heroku.com stack only supports single threaded requests. Even if your application were to fork and support handling multiple requests at once, the routing mesh will never serve more than a single request to a dyno at a time.
To help improve the meaning of these lyrics, visit “Routing Performance Update” by Jesper Joergensen (Ft. Heroku & LEMON) and leave a comment on the lyrics box