netdev - Re: [patch net-next V8] net: introduce ethernet teaming device

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Message-ID: <20111115015616.GA25132@gospo.rdu.redhat.com>
Date:	Mon, 14 Nov 2011 20:56:17 -0500
From:	Andy Gospodarek <andy@...yhouse.net>
To:	Rick Jones <rick.jones2@...com>
Cc:	Jiri Pirko <jpirko@...hat.com>, netdev@...r.kernel.org,
	davem@...emloft.net, eric.dumazet@...il.com,
	bhutchings@...arflare.com, shemminger@...tta.com, fubar@...ibm.com,
	andy@...yhouse.net, tgraf@...radead.org, ebiederm@...ssion.com,
	mirqus@...il.com, kaber@...sh.net, greearb@...delatech.com,
	jesse@...ira.com, fbl@...hat.com, benjamin.poirier@...il.com,
	jzupka@...hat.com, ivecera@...hat.com
Subject: Re: [patch net-next V8] net: introduce ethernet teaming device

On Mon, Nov 14, 2011 at 10:40:52AM -0800, Rick Jones wrote:
> On 11/12/2011 12:16 AM, Jiri Pirko wrote:
>> This patch introduces new network device called team. It supposes to be
>> very fast, simple, userspace-driven alternative to existing bonding
>> driver.
>
> What is the definition of "very" here - relative to bonding I presume?  
> Are there actual performance figures available at this point?  Something  
> along the lines of test through both on the same hardware.  I don't have  
> HW on which to run myself but would be quite happy to help with say  
> netperf command selection to demonstrate the difference between the two.
>
> happy benchmrking,
>

On most modern systems I suspect there will be little to no difference
between bonding RX peformance and team performance.

If there is any now, I suspect team and bond performance to be similar
by the time team has to account for the corner-cases bonding has already
resolved.  :-)

Benchmarks may prove otherwise, but I've yet to see Jiri produce
anything.  My initial testing doesn't demonstrate any measureable
differences with 1Gbps interfaces on a multi-core, multi-socket system.
 

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