On Sun, Mar 03, 2024 at 09:38:22PM +0100, Pierre Peyronnel wrote:
> Hey misc,
>
> Note : I posted on this topic in r/openbsd and before I open a bug, I
> thought I'd ask you.
>
> My OBSD router has a Realtek (onboard) and an intel (X540 pcie) network
> card, and in one particular situation I get very slow speed.
> I tested using iperf3 and also sftp put/get.
>
> Here goes:
> (1) When I transfer from/to a host/net A to the router on re0 I get
> symmetrical 1Gbps
> (2) When I transfer from/to a host/net B to the router on ix0 I also get
> symmetrical 1Gbps
> (3) When I transfer from host/net A to host/net B through the router (re0
> -> ix0) I get 1Gbps
> (4) When I transfer from host/net B to host/net A through the router (ix0
> -> re0) I get a crawling 3Mbps
>
> To make sure, I did a fresh install from 7.4 from scratch (okay i forgot to
> syspatch it), pfctl -d, sysctl net.ip.forwarding=1 and I got the same
> result.
>
> When I use another OS (tried Arch linux and OPNSense) I get full 1Gbps in
> all 4 scenarios.
>
> I'm at a loss and will appreciate any help, short of filing a bug.
> Below dmesg and pcidump.
> Thanks in advance !
> Pierre
Try to disable LRO on the ix(4) card:
ifconfig ix0 -tcplro
Also could you try -current (with and without tcplro).
--
:wq Claudio
