We run a Django application on Heroku, and lately we’ve been seeing some performance issues. We have New Relic APM add-on installed, and I can see that any time there is a peak in response times, the time is mostly spent in what New Relic calls “Request Queuing” (see attached image). enter image description here
Can someone help me figure out what the problem is here? Why are requests queued? Is this a horizontal scaling issue? It does not seem like the Python app itself is