Herbert Xu wrote:
On Wed, Mar 15, 2006 at 08:57:48AM +0100, Dag Arne Osvik wrote:
I've attached an implementation of AES optimized for 64-bit Pentium 4E.
The round function achieves 3 ?ops per cycle, so even with function
call overhead its performance is quite good, with best average time for
10000 consecutive encryptions at <233 cycles per block. I'll make it
ready for inclusion in the Linux kernel later. In the meantime,
comments are welcome.
Cool. How does this compare with the existing x86-64 AES implementation?
Using the best average encryption time per block from tcrypt's speed
tests gave these numbers:
ECB on Intel 288.5
ECB on AMD 286.1
CBC on Intel 510.4
CBC on AMD 334.2
Dag Arne
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