On Thu, Jan 30, 2020 at 03:43:41PM +0100, livio wrote: > Dear all, > > I am unable to achieve decent throughput with a 1 GigE interface > (Intel I210) on OpenBSD 6.6. When running iperf3 I get around 145Mbit/s. > > The config/setup is: APU2c4, Win10 notebook, no switch, Cat.6a cable, > MTU 1500, 1000baseT, full-duplex, pf disabled, BSD.mp, no custom Kernel > parameters/optimizations. > > With an increased MTU of 9000 (on both devices) the throughput is around > 230-250Mbit/s. > > When running the same test with a FreeBSD 12.1 on the APU I achieve > around 940Mbit/s (MTU 1500). > > The BIOS has been updated to the latest version (v4.11.0.2). The > hardware of the device is: https://pcengines.ch/apu2c0.htm > > dmesg output: > https://paste.ee/p/OeRbI > > Any inputs and help is highly appreciated. > > Many thanks, > Livio > > PS: I ran the same tests on an APU1c4 with Realtek RTL8111E interfaces. > The results were lower - around 95Mbit/s. > https://pcengines.ch/apu1c4.htm
Hi, Without any tuning arguments I get: chi# iperf -c beta.internal.centroid.eu ------------------------------------------------------------ Client connecting to beta.internal.centroid.eu, TCP port 5001 TCP window size: 17.0 KByte (default) ------------------------------------------------------------ [ 3] local 192.168.177.40 port 13242 connected with 192.168.177.2 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0-10.0 sec 536 MBytes 449 Mbits/sec ... on an APU1C4, could it be you have a slow switch or router? Any other hardware that could slow yours down? I'm happy with this result, the APU1 is not really a powerhorse. Regards, -peter > PPS: Others also seem to have low throughput. None of the tuning > recommendations I found online substantially improved my results: > https://www.reddit.com/r/openbsd/comments/cg9vhq/poor_network_performance_pcengines_apu4/ >
