Here's a review for AES optimization on OpenSolaris x86 64-bit:
5072963 Need an optimized AES implementation for amd64
http://dan.drydog.com/reviews/5072963-aes/
I optimized AES by replacing C code with Dr. Brian Gladman's (faster) 64-bit
assembly code available from http://fp.gladman.plus.com/AES/ Dr. Gladman's code
also performed better than 64-bit assembly available from OpenSSL.
I translated Dr. Gladman's Intel-based yasm assembly source to
OpenSolaris/ATT/UNIX/Linux assembly source format and made changes to fit
OpenSolaris prototypes and structures and to remove some byte-swapping.
Here's a summary of microbenchmark results:
Algo. .Benchmark . . . . amd64 . em64t
aes128 openssl speed . . 21-34% 11-20%
aes256 {en,de}crypt CLI .24-33% 14-20%
aes128 userland . . . . . . 37% 12%
aes256 Kernel module . . 47-50% 16-18%
Please send comments by COB June 2, 2008.
- Dan
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