Well I run an ntp stratum 1 server handling 2800 requests a second on average (3.6mbit/s total average traffic), and a flight radar24 reporting station, plus some other rarely used services.
The fan only comes on during boot, I’ve never heard it used in normal operation. Load averages 0.3-0.5. Most of that is Fr24. Chrony takes <5% of a single core usually.
It’s pretty capable.
I’m in the ntppool.org pool for the UK. It randomly assigns servers which could be any stratum really (but there is quality control on the time provided). I also have stratum 2 servers in .fi, and .fr (which are dedicated servers I also use for other things, rather than a raspberry pi).
I’ve ran multiple containers on a Pi 3 before “upgrading” to a Pi 4. Yes not even a Pi 5. Sure it’s not rapid and drags it’s heels at times but for the most part it’s great for hosting stuff for my household.
Home assistant, Plex, Syncthing, Wireguard, Ad Guard, nginx, nginx proxy manager, duckdns, mongodb and unifi network appliance. I was also running Jellyfin along side Plex but it keeps causing the Pi to lock up.
