TCP stack in FreeBSD poor performance in 100MB to
kris at FreeBSD.org
Fri Jul 4 18:30:37 UTC 2008
Hwa Hing wrote:
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> I also had such problem with FreeBSD-7 Stable-SMP with 4 port Intel
> 1GBit NIC em Driver and with Packet Filter, ALTQ enabled.
But it doesn't sound like you are testing the same thing at all.
> I tested with iperf from network a to network b. I found freebsd droping
> packets and the transfer speed in routed mode is only 2 mbit/s compare
> to linux router which able to forward the traffic at almost full speed.
Check that the software isn't making invalid Linux-specific assumptions
about e.g. socket buffer sizes.
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