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/modes | |
| 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/modes')
| -rwxr-xr-x | crypto/modes/asm/ghashp8-ppc.pl | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/modes/asm/ghashp8-ppc.pl b/crypto/modes/asm/ghashp8-ppc.pl index 6df485efcc..6a2ac71295 100755 --- a/crypto/modes/asm/ghashp8-ppc.pl +++ b/crypto/modes/asm/ghashp8-ppc.pl @@ -30,7 +30,7 @@ # 2x aggregated reduction improves performance by 50% (resulting # performance on POWER8 is 1 cycle per processed byte), and 4x # aggregated reduction - by 170% or 2.7x (resulting in 0.55 cpb). -# POWER9 delivers 0.40 cpb. +# POWER9 delivers 0.51 cpb. $flavour=shift; $output =shift; |