Re: [CRYPTO] is it really optimized ?

From: Herbert Xu
Date: Mon Apr 16 2007 - 20:41:50 EST


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,
--
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Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx>
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