Performance Issues with Ngnix

Configuration
1

To support some advanced features that I need for my network, I had to move from the Ngnix add-on to an HAProxy instance running on another server. To my surprise, hassio became much quicker and snapier. I double-checked by reactivating Nginx and the difference is noticeable.

Now I have some questions:

  1. Is the a known thing? I couldn’t find a single person complaining about it.
  2. If it’s not a known thing, can I help the team by providing metrics? If yes, what metrics do you need?

Cheers!

2

What hardware were you running home assistant and ngnix on?

What are you running the new proxy on?

3

Good question! I should have mentioned this before. Hassio running on docker on a i5 NUC with 16 GB of RAM. The new proxy is running on a Raspberry Pi 4 Model B with 4GB of RAM.

4

Any other cpu intensive addons installed, like Motioneye or Unifi?

5

Nope. Unifi runs on its own hardware and none of the add-ons are that intensive.

I have a guess: SSL termination. HAroxy is terminating SSL and no need to decrypt further requests from a certified client. Processing is offloaded to the RPB4. On the other hand, Nginx, because it sits in a container on the same server as hassio, it share the same resources for SSL termination.

6

I thing my guess could be the answer for the performance difference:

image
image1048×678 19.4 KB

Source: https://www.loggly.com/blog/benchmarking-5-popular-load-balancers-nginx-haproxy-envoy-traefik-and-alb/