Subject: Re: intel 82599 multi-port performance

From: Chris Friesen <[email-masked]>
Date: Mon, 26 Sep 2011 08:20:49 -0600

On 09/26/2011 04:26 AM, J.Hwan Kim wrote:
> Hi, everyone
>
> Now, I'm testing a network card including intel 82599.
> In our experiment, with the driver modified with ixgbe and multi-port
> enabled,

What do you mean by "modified with ixgbe and multi-port enabled"?  You 
shouldn't need to do anything special to use both ports.

> rx performance of each port with 10Gbps of 64bytes frame is
> a half than when only 1 port is used.

Sounds like a cpu limitation.  What is your cpu usage?  How are your 
interrupts routed?  Are you using multiple rx queues?

Chris

-- 
Chris Friesen
Software Developer
GENBAND
[email-masked]
www.genband.com