From: Ben Hutchings <bhutchings@solarflare.com>
To: Simon Chen <simonchennj@gmail.com>
Cc: Ben Greear <greearb@candelatech.com>, <netdev@vger.kernel.org>
Subject: Re: under-performing bonded interfaces
Date: Thu, 17 Nov 2011 02:51:54 +0000 [thread overview]
Message-ID: <1321498314.2885.78.camel@deadeye> (raw)
In-Reply-To: <CANj2Ebdd89=Fk6i4e4Txsb3ANuzz-x4t+tT6CAnWDNZe0zvx9g@mail.gmail.com>
On Wed, 2011-11-16 at 20:38 -0500, Simon Chen wrote:
> Thanks, Ben. That's good discovery...
>
> Are you saying that both 10G NICs are on the same PCIe x4 slot, so
> that they're subject to the 12G throughput bottleneck?
I assumed you were using 2 ports on the same board, i.e. the same slot.
If you were using 1 port each of 2 boards then I would have expected
them both to be usable at full speed. So far as I can remember, PCIe
bridges are usually set up so there isn't contention for bandwidth
between slots.
Ben.
--
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
next prev parent reply other threads:[~2011-11-17 2:52 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-16 23:44 under-performing bonded interfaces Simon Chen
2011-11-17 0:01 ` Ben Greear
2011-11-17 0:05 ` Simon Chen
2011-11-17 0:07 ` Ben Greear
2011-11-17 0:57 ` Ben Hutchings
2011-11-17 1:38 ` Simon Chen
2011-11-17 1:45 ` Simon Chen
2011-11-17 1:45 ` Rick Jones
2011-11-17 2:51 ` Ben Hutchings [this message]
2011-12-22 1:26 ` Simon Chen
2011-12-22 1:36 ` Stephen Hemminger
2011-12-22 3:31 ` Ben Greear
2011-12-22 2:28 ` Simon Chen
2011-12-22 5:43 ` Eric Dumazet
2011-12-23 15:03 ` Simon Chen
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