j...@openbsd.org [j...@openbsd.org] wrote: > On Sun, Feb 11, 2024 at 10:42:32AM -0800, Chris Cappuccio wrote: > > huh, after i migrated nat fw from 82599 (ix) with LRO on (default) to > > a CX4121A (mcx) flashed to latest nvidia firmware and now i'm getting > > 900mbps on single tcp throughput > > > (endpoints still using lro on em and ix) > em(4) does not support the LRO feature, just TSO with mglocker's diff. > > > and very consistently getting close to the full 1gbps > > thruoghput on single tcp connections now instead of slower and slightly > > varying results. guess i should go back and test ix with LRO off on > > the pf box. > > Sorry, I don't get your problem. You changed your firewall NICs from > ix(4) to mcx(4) and the throughput got slower? Or, the speed it varying > between 0.9 gbps and 1.0 gbps?
got faster, notably faster and more consistent TCP performance as tested with an ix sender, through mcx firewall, to a 1Gbps em endpoint, 1500 byte normal mtu, all default settings across the board i would have to test more to understand what was going on, but this took me for surprise chris
