I don't know if this is information you want in the wiki, but:
I had noticeably slower speeds with docker compared to native. Then I moved to podman, and started running gluetun in a pod and whatever other container i wanted to route through the VPN in the same pod. The performance impact is tiny - I am maxing out my 500mbit line and the processor isn't even working very hard. They share the network stack, so whenever gluetun goes down, the kill switch reliably triggers.
URL to the Wiki page
https://github.com/qdm12/gluetun-wiki/blob/main/faq/bandwidth.md
What's missing?
I don't know if this is information you want in the wiki, but:
I had noticeably slower speeds with docker compared to native. Then I moved to podman, and started running gluetun in a pod and whatever other container i wanted to route through the VPN in the same pod. The performance impact is tiny - I am maxing out my 500mbit line and the processor isn't even working very hard. They share the network stack, so whenever gluetun goes down, the kill switch reliably triggers.
best regards Linus