diff options
| author | Andy Polyakov <appro@openssl.org> | 2018-06-02 14:03:27 +0200 |
|---|---|---|
| committer | Andy Polyakov <appro@openssl.org> | 2018-06-03 21:20:06 +0200 |
| commit | 41013cd63c068e2f271fabc92702ee67d800f0cb (patch) | |
| tree | 51fae99bc0bb6a7cb78500bc5109f2f86cd03d83 /crypto/sha | |
| parent | 9a708bf982da1d2c9739339d16d7b021da955e00 (diff) | |
PPC assembly pack: correct POWER9 results.
As it turns out originally published results were skewed by "turbo"
mode. VM apparently remains oblivious to dynamic frequency scaling,
and reports that processor operates at "base" frequency at all times.
While actual frequency gets increased under load.
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6406)
Diffstat (limited to 'crypto/sha')
| -rwxr-xr-x | crypto/sha/asm/keccak1600-ppc64.pl | 2 | ||||
| -rwxr-xr-x | crypto/sha/asm/keccak1600p8-ppc.pl | 2 | ||||
| -rwxr-xr-x | crypto/sha/asm/sha512p8-ppc.pl | 4 |
3 files changed, 4 insertions, 4 deletions
diff --git a/crypto/sha/asm/keccak1600-ppc64.pl b/crypto/sha/asm/keccak1600-ppc64.pl index bc1023e399..30e70c5d6d 100755 --- a/crypto/sha/asm/keccak1600-ppc64.pl +++ b/crypto/sha/asm/keccak1600-ppc64.pl @@ -30,7 +30,7 @@ # PPC970/G5 14.6/+120% # POWER7 10.3/+100% # POWER8 11.5/+85% -# POWER9 7.2/+45% +# POWER9 9.4/+45% # # (*) Corresponds to SHA3-256. Percentage after slash is improvement # over gcc-4.x-generated KECCAK_1X_ALT code. Newer compilers do diff --git a/crypto/sha/asm/keccak1600p8-ppc.pl b/crypto/sha/asm/keccak1600p8-ppc.pl index a0aeeb0412..de2bcd660a 100755 --- a/crypto/sha/asm/keccak1600p8-ppc.pl +++ b/crypto/sha/asm/keccak1600p8-ppc.pl @@ -23,7 +23,7 @@ # buffer for r=1088, which matches SHA3-256. This is 17% better than # scalar PPC64 code. It probably should be noted that if POWER8's # successor can achieve higher scalar instruction issue rate, then -# this module will loose... And it does on POWER9 with 8.8 vs. 7.2. +# this module will loose... And it does on POWER9 with 12.0 vs. 9.4. $flavour = shift; diff --git a/crypto/sha/asm/sha512p8-ppc.pl b/crypto/sha/asm/sha512p8-ppc.pl index a33ae4dc45..7a8d4358f0 100755 --- a/crypto/sha/asm/sha512p8-ppc.pl +++ b/crypto/sha/asm/sha512p8-ppc.pl @@ -37,8 +37,8 @@ # build of sha512-ppc.pl, presented for reference. # # POWER8 POWER9 -# SHA256 9.9 [15.8] 9.2 [9.3] -# SHA512 6.3 [10.3] 5.8 [5.9] +# SHA256 9.9 [15.8] 12.2 [12.5] +# SHA512 6.3 [10.3] 7.7 [7.9] $flavour=shift; $output =shift; |