linux-kernel - Re: [PATCH] tuntap: choose the txq based on rxq

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Date:	Mon, 29 Oct 2012 14:03:48 +0800
From:	Jason Wang <jasowang@...hat.com>
To:	Jason Wang <jasowang@...hat.com>
CC:	davem@...emloft.net, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, mst@...hat.com, maxk@...lcomm.com,
	haixiao@...iper.net, ernesto.martin@...sat.com,
	krkumar2@...ibm.com, edumazet@...gle.com
Subject: Re: [PATCH] tuntap: choose the txq based on rxq

On 10/29/2012 01:35 PM, Jason Wang wrote:
> This patch implements a simple multiqueue flow steering policy - tx follows rx
> for tun/tap. The idea is simple, it just choose the txq based on which rxq it
> comes. The flow were identified through the rxhash of a skb, and the hash to
> queue mapping were recorded in a hlist with an ageing timer to retire the
> mapping. The mapping were created when tun receives packet from userspace, and
> was quired in .ndo_select_queue().
>
> I run co-current TCP_CRR test and didn't see any mapping manipulation helpers in
> perf top, so the overhead could be negelected.
>
> Signed-off-by: Jason Wang<jasowang@...hat.com>

Sorry, send the wrong patch, please ignore this patch.
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