netdev - Using GPU to do packet forwarding

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Message-ID: <20100824151507.5c13bd69@s6510>
Date:	Tue, 24 Aug 2010 15:15:07 -0700
From:	Stephen Hemminger <shemminger@...tta.com>
To:	David Miller <davem@...emloft.net>,
	Eric Dumazet <dada1@...mosbay.com>, netdev@...r.kernel.org
Subject: Using GPU to do packet forwarding

Interesting paper:
  http://www.ndsl.kaist.edu/~kyoungsoo/papers/packetshader.pdf
One section of general consideration is the expense of the current
skb scheme. At 10G, they measure 60% of the CPU is used doing skb
alloc/free; see paper for the alternative of using a huge
packet buffer.  Also, they managed to shrink skb to 8 bytes!

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