Post #4367170
2026-07-27 16:33 UTC
@niconiconi@mk.absturztau.be @drwho@masto.hackers.town We use 9000 jumbo frames and don’t see much of an improvement, but we are not saturated so it’s hard to tell.
Thinks like hardware TSO, RSS, Etc seem to make a small difference.
Replies (1)
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@niconiconi@mk.absturztau.be 2026-07-27 16:49
@thedarktangent@defcon.social @drwho@masto.hackers.town Even a 2011 Core i7-2600K (Sandy Bridge) can do 10 GbE at line rate over a single TCP stream on a bare-metal system, no jumbo frames needed, no problem. It becomes a problem if there's a packet-per-second bottleneck somewhere in the stack, and there are a lot of them for a VM. But all forum users only know how to enable jumbo frame.