Try tweaking this sysctl: net.inet.tcp.recvspc Give it sysctl -w net.inet.tcp.recvspace=262144 and run your tests. Tweak it down from there.
On 2/12/08, "G|nter Zimmermann" <[EMAIL PROTECTED]> wrote: > I have been using openbsd as router and firewall for several years without problems to do routing between four networks (ethernet, ipv4) using 100 Mbit/s nics. After upgrading network infrastructure to 1000Mbit/s the network throughput is not as expected. I expected a throughput around 100 Mbyte/s and got about 30 Mbyte/s(240Mbit/s) (ftp,ssh,nfs), netperf 550Mbit/s. My question is now, whether harddisk and/or filesystem performance could have an impact on the network throughput when pf is used for routing and firewall purposes. I use intel pro server nics each on one PCI-E bus. The firewall system is a amd dual core with 2 GB ram and one 80 GB SATAII harddisk.

