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Date: Fri, 1 Nov 2002 09:16:04 -0700
From: Erik Andersen <andersen@codepoet.org>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: What's left over.
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On Fri Nov 01, 2002 at 03:25:01PM +0000, Linus Torvalds wrote:
> funny - I'd be surprised if RL throughput copying back and forth over a
> PCI bus is more than 25-30MB/s), I suspect that you can do most crypto
> faster on the CPU directly these days. 
> 
> Maybe not. The only numbers I have is the slowness of PCI.

It may be faster on your beefy 8 CPU boxes.  But many people are
creating, for example, little wireless access points with 200 Mhz
StrongArm CPUs and similar little devices that lack the major CPU
horsepower of big-iron system.  Such boxes would be far better
off offloading crypto to a little crypto chip, right?

 -Erik

--
Erik B. Andersen             http://codepoet-consulting.com/
--This message was written using 73% post-consumer electrons--
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