netdev - Re: pre-fetching skb for delayed send

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Message-ID: <20120706235258.GD19462@kvack.org>
Date:	Fri, 6 Jul 2012 19:52:58 -0400
From:	Benjamin LaHaise <bcrl@...ck.org>
To:	Ben Greear <greearb@...delatech.com>
Cc:	netdev <netdev@...r.kernel.org>
Subject: Re: pre-fetching skb for delayed send

On Fri, Jul 06, 2012 at 04:10:40PM -0700, Ben Greear wrote:
> So, is there an easy way to pre-fetch an skb and it's related pages?

One trick would be to store the pointers to the skbs in an array rather than 
relying on a list of skbs.  That would enable you to issue prefetches for 
multiple skbs from a single cache line of the array, rather than relying 
upon the slow chasing of pointers guaranteed to cache miss in a list.

		-ben
-- 
"Thought is the essence of where you are now."
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