netdev - Re: [PATCH 20/31]: pkt_sched: Perform bulk of qdisc destruction in RCU.

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Message-Id: <20080721.080901.214889979.davem@davemloft.net>
Date:	Mon, 21 Jul 2008 08:09:01 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	herbert@...dor.apana.org.au
Cc:	hadi@...erus.ca, kaber@...sh.net, netdev@...r.kernel.org,
	johannes@...solutions.net, linux-wireless@...r.kernel.org
Subject: Re: [PATCH 20/31]: pkt_sched: Perform bulk of qdisc destruction in
 RCU.

From: Herbert Xu <herbert@...dor.apana.org.au>
Date: Mon, 21 Jul 2008 21:58:46 +0800

> On Mon, Jul 21, 2008 at 09:56:25AM -0400, jamal wrote:
> > 
> > Ok - You may be able to pull it if you have the exact same hashing on
> > hardware rx as it is on transmit stateless filtering.
> > I can see a traffic pattern that could be cooked to give some good
> > numbers in such a scenario;->
> 
> Actually you've hit it on the head, as an alternative to TX hashing
> on the packet content, we need to allow TX queue selection based on
> the current CPU ID.

This we should avoid, it would allow reordering within a flow.
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