I recently moved from a non docker ubuntu 18.04 setup to a full docker 22.04 setup. I used to get a pretty consistent 95-105 MB/s in sab. I can’t seem to get more than 70 MB/s in my new setup. Both my usenet providers are setup the same and using 50 connections. I’d love to blame docker, but thought i see if anyone here has seen this as well. Any suggestions on what to look at?
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This could be the I/O overhead caused by docker while using NAT networking: https://stackoverflow.com/questions/21889053/what-is-the-runtime-performance-cost-of-a-docker-container#26149994
That’s a large penalty, wow.
It’s huge for networking. VPN gateway (for accessing the VPN WAN over LAN) on the host is 20-40% faster than dockerized…
I’m using NAT for sure. All my containers are on a different subnet than the host.