I don't have any other 2.5G capable hardware so I tested by connecting the interfaces to eachother and placed them in different routing domains. With pf disabled I reach about 925 Mbit/sec sustained average with iperf3 in either direction, and a bit more with OpenBSD's own tcpbench(1) which averages at 940-ish Mbit/sec: the maximum of plain gigabit Ethernet.
It's a bit puzzling that it lands exactly at the limit of 1 gigabit, since ifconfig confirms that the link has negotiated 2500T full duplex. During the test the machine is running at boost frequency of 2900 MHz (aka "2001 MHz" in Intel Speedstep lingo), and nothing from top(1) suggests that it's even close to being stressed out. Though I notice that all 30-35% of "intr" load happens on a single core. No signs of rge(4) timing out or dropping link or similar. I don't have the 4-port expansion, only the two on-board RTL8125B NICs. On Tue, Apr 18, 2023 at 11:51 PM Nick Owens <misch...@offblast.org> wrote: > On Tue, Apr 18, 2023 at 7:28 AM stolen data <stolen.data....@gmail.com> > wrote: > > > > Everything seems to work. Only caveat noticed is that the firmware is > > UEFI-only with no CSM/legacy mode, and it will only boot an OpenBSD > > installation from GPT which must contain an EFI system partition holding > > the bootloader. > > great choice. my ODROID H2+ is still holding strong with the add-in > card for 4 extra NICs. it is a fine home firewall. > > my only complaint is sometimes having > > rge5: watchdog timeout > rge2: watchdog timeout > > in dmesg and occasional link state issues, but i didn't dig into > whether its from the rge driver or stuff i attached. > > if you can, provide an iperf3 result in both forward and reverse mode. > here, i only have about 1.60 Gbit/s in both directions, but that's > fine for my wan link. > > > > > dmesg: > > > > ppb0 at pci0 dev 28 function 0 "Intel Jasper Lake PCIE" rev 0x01: msi > > pci1 at ppb0 bus 1 > > rge0 at pci1 dev 0 function 0 "Realtek RTL8125" rev 0x05: msi, address > > 00:xx:xx:xx:xx:x1 > > ppb1 at pci0 dev 28 function 1 "Intel Jasper Lake PCIE" rev 0x01: msi > > pci2 at ppb1 bus 2 > > rge1 at pci2 dev 0 function 0 "Realtek RTL8125" rev 0x05: msi, address > > 00:xx:xx:xx:xx:x2 > > >
