Here's a review for CR 6665607 Need a SHA256/SHA384/SHA512 implementation
optimized for 64-bit x86
http://dan.drydog.com/reviews/6665607-sha2/
I incorporated the OpenSSH/CRYPTOGAMS version of SHA2 written in x86_64
assembler for AMD64 and EM64T. This replaces the previous C implementation.
Performance results follow. Please send comments by COB March 19, 2008.
- Dan
Performance Summary (all numbers are in MBytes/second throughput) using NV84
Adding OpenSSL sha512-x86_64.pl to Solaris OS speeds up
SHA256/384/512performance for both AMD64 and Intel EM64T.
-----------------------------------------------------------
**************** SHA256 ****************
./pk11sha256perf (128-byte data)
AMD64 EM64T
C 90 98
Assembly 114 108
modload ssha256_scale (1 thread)
AMD64 EM64T
C 96 107
Assembly 123 114
modload ssha256_scale (4 threads)
AMD64 EM64T
C 35 38
Assembly 43 41
-----------------------------------------------------------
**************** SHA384 ****************
./pk11sha384perf (128-byte data)
AMD64 EM64T
C 110650 93224
x86_64 Assembly 164938 142473
modload ssha384_scale (1 thread)
AMD64 EM64T
C 90 91
x86_64 Assembly 173 160
modload ssha384_scale (4 threads)
AMD64 EM64T
C 33 34
x86_64 Assembly 59 57
-----------------------------------------------------------
**************** SHA512 ****************
./pk11sha512perf (128-byte data)
AMD64 EM64T
C 139369 91162
Assembly 152177 154622
modload ssha512_scale (1 thread)
AMD64 EM64T
C 90 91
Assembly 173 160
modload ssha512_scale (4 threads)
AMD64 EM64T
C 33 34
Assembly 59 56
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