My question is that can Tor work on the HPE MicroServer Gen10 with the AMD X3421 (or one with a similar computer of any brand with a similar performance CPU, whether desktop or server, Intel or AMD) with all 300 megabits to a single instance or would I need two instances (each at 150 megabits each)? Looking at my top usage, I average at about 20-30% CPU usage on my 50 megabit relay.
based on the cpubenchmarks I found for your CPU I estimate that 300 Mbit/s are doable with that CPU on a single core.
* When I move, I will upgrade my server to FreeBSD 12.0
beware of the incompatibility of Tor with OpenSSL 1.1.1a [1] (used by default on FreeBSD 12.0). The workaround is easy: recompile with the older openssl version available via ports [1] https://trac.torproject.org/projects/tor/ticket/28616 -- https://twitter.com/nusenu_ https://mastodon.social/@nusenu