generic-library/openssl
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

rc4-x86_64.pl: commentary update.

Browse Source
This commit is contained in:
Andy Polyakov 2011-06-27 09:46:16 +00:00
parent 0a9a692e4e
commit 0772f3b4f6
1 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
crypto/rc4/asm/rc4-x86_64.pl
View File

@ -86,14 +86,17 @@
# is better) and improvement coefficients relative to previous # is better) and improvement coefficients relative to previous
# version of this module are: # version of this module are:
# #
# Opteron 5.3/+0% # Opteron 5.3/+0%(*)
# P4 6.5 # P4 6.5
# Core2 6.2/+15%(*) # Core2 6.2/+15%(**)
# Westmere 4.2/+60% # Westmere 4.2/+60%
# Sandy Bridge 4.2/+120% # Sandy Bridge 4.2/+120%
# Atom 9.3/+80% # Atom 9.3/+80%
# #
# (*) Note that Core2 result is ~15% lower than corresponding result # (*) But corresponding loop has less instructions, which should have
# positive effect on upcoming Bulldozer, which has one less ALU.
# For reference, Intel code runs at 6.8 cpb rate on Opteron.
# (**) Note that Core2 result is ~15% lower than corresponding result
# for 32-bit code, meaning that it's possible to improve it, # for 32-bit code, meaning that it's possible to improve it,
# but more than likely at the cost of the others (see rc4-586.pl # but more than likely at the cost of the others (see rc4-586.pl
# to get the idea)... # to get the idea)...