netdev - Re: [PATCH 2/3][NET_BATCH] net core use batching

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Message-Id: <20071008.194636.56034897.davem@davemloft.net>
Date:	Mon, 08 Oct 2007 19:46:36 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	jeff@...zik.org
Cc:	hadi@...erus.ca, peter.p.waskiewicz.jr@...el.com,
	krkumar2@...ibm.com, johnpol@....mipt.ru,
	herbert@...dor.apana.org.au, kaber@...sh.net,
	shemminger@...ux-foundation.org, jagana@...ibm.com,
	Robert.Olsson@...a.slu.se, rick.jones2@...com, xma@...ibm.com,
	gaagaan@...il.com, netdev@...r.kernel.org, rdreier@...co.com,
	mcarlson@...adcom.com, mchan@...adcom.com,
	general@...ts.openfabrics.org, tgraf@...g.ch,
	randy.dunlap@...cle.com, sri@...ibm.com
Subject: Re: [PATCH 2/3][NET_BATCH] net core use batching

From: Jeff Garzik <jeff@...zik.org>
Date: Mon, 08 Oct 2007 22:12:03 -0400

> I'm interested in working on a load balancer function that approximates
> 
> 	skb->queue_mapping = smp_processor_id()
> 
> I'd be happy to code and test in that direction, based on your lib.

It's the second algorithm that will be available :-)  Just add
a "% num_tx_queues" to the result.

> IMO the net driver really should provide a hint as to what it wants.
> 
> 8139cp and tg3 would probably prefer multiple TX queue behavior to match 
> silicon behavior -- strict prio.
> 
> And I'll volunteer to write the net driver code for that, if people want 
> to see how things would look for that type of hardware packet scheduling.

Ok.
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