netdev - Re: [PATCH net-next-2.6] rps: consistent rxhash

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Message-Id: <20100420.011826.86913718.davem@davemloft.net>
Date:	Tue, 20 Apr 2010 01:18:26 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	xiaosuo@...il.com, therbert@...gle.com, netdev@...r.kernel.org
Subject: Re: [PATCH net-next-2.6] rps: consistent rxhash

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Tue, 20 Apr 2010 09:56:38 +0200

> In case we compute a software skb->rxhash, we can generate a consistent
> hash : Its value will be the same in both flow directions.
> 
> This helps some workloads, like conntracking, since the same state needs
> to be accessed in both directions.
> 
> tbench + RFS + this patch gives better results than tbench with default
> kernel configuration (no RPS, no RFS)
> 
> Also fixed some sparse warnings.
> 
> Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>

Applied.
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