linux-kernel - Re: [CRYPTO] is it really optimized ?

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Date:	Tue, 17 Apr 2007 10:41:17 +1000
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Francis Moreau <francis.moro@...il.com>
Cc:	helge.hafting@...el.hist.no, linux-kernel@...r.kernel.org,
	linux-crypto@...r.kernel.org
Subject: Re: [CRYPTO] is it really optimized ?

On Mon, Apr 16, 2007 at 10:37:01AM +0200, Francis Moreau wrote:
> 
> BTW, here are figures I got with 2 different versions of the driver
> when using tcrypt module. The second being the result with the
> optimized driver (no key reloading on each block):
> 
> normal version:
> test 4 (128 bit key, 8192 byte blocks): 1 operation in 67991 cycles (8192 
> bytes)
> 
> optimized version:
> test 4 (128 bit key, 8192 byte blocks): 1 operation in 51783 cycles (8192 
> bytes)
> 
> So the gain is 16000 cycles which seems to worth the change, isn't it ?

Sounds like it would.  It would help of course if you posted the patch :)

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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