I would recommend moving to 8.2 with the additional fixes in stable to
which prevents adding IP's from disconnecting the network.
In the machine what PCIe speed does it state its using? What CPU's do
you have as to push closer to 10Gbps your going to need a quick machine.
Regards
Steve
----- Original Message -----
From: "William Salt" <williamejs...@googlemail.com>
To: <freebsd-net@freebsd.org>
Sent: Thursday, May 19, 2011 2:52 PM
Subject: Intel 10GbE Tuning under freebsd
Hi All,
I have just got a couple of 10GbE intel X520-DA2 cards to test. Im
running freebsd 8.1 on a super micro intel xeon server, and a hp core 2 duo
workstation, both machines have 4gb of ram.
Both are attached via sfp+ cables to a brocade turbo iron switch, which
simply has jumbo frames enabled.
Initial testing was pretty basic, i simply enabled jumbo frames, and
increased max send/recv buffer to 16MB, which should be more than enough.
I then ran iperf and managed to get approximately 5gbps, i was expecting
around 8.5gbps.
However, i realise that the ix driver probably needs to be tuned, as well as
the OS.
After a bit of googling, i cant find a tuning guide under freebsd for 10GbE,
or many recommendations, and wondered if anyone has already successfully
managed to tune freebsd with intel 10gbe nics, to gain a higher throughput?
If so, has anyone got any tips, or sample configs?
Thanks in advance
Will
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