diff options
Diffstat (limited to 'crypto/sha/asm/sha1-586.pl')
| -rw-r--r-- | crypto/sha/asm/sha1-586.pl | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/crypto/sha/asm/sha1-586.pl b/crypto/sha/asm/sha1-586.pl index 59da867848..8377299b1e 100644 --- a/crypto/sha/asm/sha1-586.pl +++ b/crypto/sha/asm/sha1-586.pl @@ -93,16 +93,19 @@ # P4 10.6 - # AMD K8 7.1 - # Core2 7.3 6.0/+22% - -# Atom 12.5 9.3(*)/+35% - # Westmere 7.3 5.5/+33% - # Sandy Bridge 8.8 6.2/+40% 5.1(**)/+73% # Ivy Bridge 7.2 4.8/+51% 4.7(**)/+53% # Haswell 6.5 4.3/+51% 4.1(**)/+58% # Bulldozer 11.6 6.0/+92% # VIA Nano 10.6 7.5/+41% +# Atom 12.5 9.3(*)/+35% +# Silvermont 14.5 9.9(*)/+46% # # (*) Loop is 1056 instructions long and expected result is ~8.25. -# It remains mystery [to me] why ILP is limited to 1.7. +# The discrepancy is because of front-end limitations, so +# called MS-ROM penalties, and on Silvermont even rotate's +# limited parallelism. # # (**) As per above comment, the result is for AVX *plus* sh[rl]d. |