On Wed, Apr 21, 2010 at 9:32 AM, Stephen Sanders <[email protected]> wrote: > I am running speed tests on a pair of systems equipped with Intel 10Gbps > cards and am getting poor performance. > > iperf and tcpdump testing indicates that the card is running at roughly > 2.5Gbps max transmit/receive. > > My attempts at turning fiddling with netisr, polling, and varying the > buffer sizes has been fruitless. I'm sure there is something that I'm > missing so I'm hoping for suggestions. > > There are two systems that are connected head to head via cross over > cable. The two systems have the same hardware configuration. The > hardware is as follows: > > 2 Intel E5430 (Quad core) @ 2.66 Ghz > Intel S5000PAL Motherboard > 16GB Memory > > My iperf command line for the client is: > > iperf -t 10 -c 169.0.0.1 -w 2.5M -l 2.5M > > My TCP dump test command lines are: > > tcpdump -i ix0 -w/dev/null > tcpreplay -i ix0 -t -l 0 -K ./test.pcap
If you're running 8.0-RELEASE, you might try updating to 8-STABLE. Jack Vogel recently committed updated Intel NIC driver code: http://svn.freebsd.org/viewvc/base/stable/8/sys/dev/ixgbe/ -Brandon _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-performance To unsubscribe, send any mail to "[email protected]"
