Comparison of FreeBSD/Linux TCP Throughput performance

Ivan Voras ivoras at
Mon Oct 19 11:44:00 UTC 2009

Steve Dong wrote:
> It looks the jpeg attachments were somehow dropped. Trying again with pdf
> attachment. Hopefully it works this time. 


I haven't tried comparing this sort of performance with Linux so your 
conclusion still might be right, but the fact that you couldn't saturate 
1 Gbps on either system even with big packets suggests that there might 
be an external problem - a bad network card or a bad driver for the 
network card, or a switch whose line discipline is a bit in conflict 
with the NIC or the driver.

I have previously successfully (and rather trivially) saturated 1 Gbps 
links with Broadcom cards with FreeBSD 7.x, so it *is* possible.

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