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ec/asm/ecp_nistz256-x86_64.pl: update commentary with before-after performance data.

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Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit b06a6f7cc44baa0c17207a8f72c4ac360be7b555)
This commit is contained in:
Andy Polyakov 2015-03-13 11:12:19 +01:00
parent 8338cf0bdb
commit c8ece537e3
1 changed files with 16 additions and 12 deletions
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crypto/ec/asm/ecp_nistz256-x86_64.pl
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@ -30,20 +30,24 @@
# Further optimization by <appro@openssl.org>:
#
# this/original
# Opteron +12-49%
# Bulldozer +14-45%
# P4 +18-46%
# Westmere +12-34%
# Sandy Bridge +9-35%
# Ivy Bridge +9-35%
# Haswell +8-37%
# Broadwell +18-58%
# Atom +15-50%
# VIA Nano +43-160%
# this/original with/without -DECP_NISTZ256_ASM(*)
# Opteron +12-49% +110-150%
# Bulldozer +14-45% +175-210%
# P4 +18-46% n/a :-(
# Westmere +12-34% +80-87%
# Sandy Bridge +9-35% +110-120%
# Ivy Bridge +9-35% +110-125%
# Haswell +8-37% +140-160%
# Broadwell +18-58% +145-210%
# Atom +15-50% +130-180%
# VIA Nano +43-160% +300-480%
#
# (*) "without -DECP_NISTZ256_ASM" refers to build with
# "enable-ec_nistp_64_gcc_128";
#
# Ranges denote minimum and maximum improvement coefficients depending
# on benchmark.
# on benchmark. Lower coefficients are for ECDSA sign, relatively fastest
# server-side operation. Keep in mind that +100% means 2x improvement.
$flavour = shift;
$output = shift;