netdev - Re: under-performing bonded interfaces

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Message-ID: <4EC45052.10101@candelatech.com>
Date:	Wed, 16 Nov 2011 16:07:46 -0800
From:	Ben Greear <greearb@...delatech.com>
To:	Simon Chen <simonchennj@...il.com>
CC:	netdev@...r.kernel.org
Subject: Re: under-performing bonded interfaces

On 11/16/2011 04:05 PM, Simon Chen wrote:
> If used independently, I can get around 9.8Gbps.

On each of them concurrently, or just one at a time?

> [   11.572857] ixgbe 0000:03:00.0: Multiqueue Enabled: Rx Queue count
> = 24, Tx Queue count = 24
> [   11.572861] ixgbe 0000:03:00.0: (PCI Express:5.0Gb/s:Width x4)
> e8:9a:8f:23:42:1a
> [   11.572943] ixgbe 0000:03:00.0: MAC: 2, PHY: 8, SFP+: 3, PBA No: FFFFFF-0FF
> [   11.572944] ixgbe 0000:03:00.0: PCI-Express bandwidth available for
> this card is not sufficient for optimal performance.
> [   11.572946] ixgbe 0000:03:00.0: For optimal performance a x8
> PCI-Express slot is required.

Looks to me like it may be hardware related unless you are certain you
can get both NICs running at high-speed independently of any bonding
code...

Thanks,
Ben

-- 
Ben Greear <greearb@...delatech.com>
Candela Technologies Inc  http://www.candelatech.com

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