On Fri, Feb 12, 2010 at 08:23:27PM +0200, Kapetanakis Giannis wrote: > Hi, > > I'm not satisfied with the network performance on my OpenBSD > firewall/router. > CPU is Intel(R) Core(TM)2 Duo CPU E6550 @ 2.33GHz / with 4G ram > OpenBSD server 4.6 GENERIC.MP#89 i386 >
Update to current to get some msk fixes that should make msk(4) faster. For high performance get a dual em(4) card since those will behave much better (the interrupt mitigation on msk(4) is somewhat bad and causes a 4 to 5 times higher delay). > This pc/router/firewall is directly connected to a Gigabit HP > 2810-48G switch. > > Server: > Ext interface: Realtek 8169SC (re0 - IP 192.168.1.2/30 > Int interface: Marvell Yukon 88E8056 (msk0 - vlan61 - IP 10.100.61.2/30) > The internal interface is a VLAN trunk (802.1Q) interface. > > I have a client on VLAN 61 with IP 10.100.61.1/30 connected to the > same switch. > > I run iperf tests with iperf -s on server / iperc -c server on client. > Changing window sizes didn't help. > > I get 300 Mbps on the internal Interface and 350 Mbps on the > external interface. > Packet fowarding from an ftp server outside -> to the client inside > is around 350-400Mbps > wget -O /dev/null > > I've tried changing net.inet.tcp.recvspace and net.inet.tcp.sendspace and > the throughput settled in the values above with any value above 32768. > > Now if I reboot the obsd machine in linux (same machine/same network > configuration) > I get 885 Mbps on the internal interface and 660 Mbps on the > external interface) > Packet fowarding from an ftp server outside -> to the client is > around 600Mbps > So apparently on the same machine I get double performance while > running linux. > > I've also tried changing net.inet.ip.ifq.maxlen, > net.inet.tcp.rfc1323, net.bpf.bufsize, > net.bpf.maxbufsize, kern.maxclusters without any significant change > in performance. > > The machine itself downloads with max 350-400Mbps. Linux did at > 600-800Mbps (wget -O /dev/null). > pf is disabled and if enabled (+client nat) there is no significant > loss from there. > > Any ideas on how I could improve the performance? Any sysctl > parameter I'm missing? > Maybe it could be a driver problem (both of them?). Something wrong > in the setup? > > > best regards, > > Giannis > -- :wq Claudio
