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Date:      Thu, 08 Mar 2012 19:21:20 +0200
From:      Adrian Minta <adrian.minta@gmail.com>
To:        freebsd-net@freebsd.org
Subject:   Re: Multiqueue support, igb
Message-ID:  <4F58EA90.2040300@gmail.com>
In-Reply-To: <jja9p7$i59$1@dough.gmane.org>
References:  <jja9p7$i59$1@dough.gmane.org>

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On 03/08/12 14:47, Ivan Voras wrote:
> Hello,
>
> What is the current state of support for multithreaded TCP processing in
> CURRENT? If a NIC supports multiple queues, will they be used
> automatically or net.isr.numthreads needs to be increased?
>
> I have this situation on a machine with an igb card:
>
> irq256: igb0:que 0                103573         11
> irq257: igb0:que 1                 10094          1
> irq258: igb0:que 2                 18231          2
> irq259: igb0:que 3                 18186          2
>
> This looks like the first queue is used ~~ 10x more often than the
> others. Is this a problem?
>
>
I believe that the card do internally some sort of ether-channel. This 
may explain your findings.

-- 
Best regards,
Adrian Minta






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