GCC 8.0 znver1 x86 March Levels
AMD EPYC 7601 32-Core testing with a TYAN B8026T70AE24HR and ASPEED ASPEED Family on Debian 9.1 via the Phoronix Test Suite.


-O3- march=opteron-sse3: 

	Processor: AMD EPYC 7601 32-Core @ 2.20GHz (64 Cores), Motherboard: TYAN B8026T70AE24HR, Chipset: AMD Device 1450, Memory: 8 x 16384 MB DDR4-2666MHz Samsung, Disk: 120GB Force MP500, Graphics: ASPEED ASPEED Family, Monitor: Acer P243W, Network: Broadcom Limited NetXtreme BCM5720 Gigabit PCIe

	OS: Debian 9.1, Kernel: 4.14.0-rc1-zen-hwmon (x86_64) 20170919, Desktop: GNOME Shell 3.22.3, Compiler: GCC 8.0.0 20170917, File-System: ext4, Screen Resolution: 1920x1200

-O3 -march=btver2: 

	Processor: AMD EPYC 7601 32-Core @ 2.20GHz (64 Cores), Motherboard: TYAN B8026T70AE24HR, Chipset: AMD Device 1450, Memory: 8 x 16384 MB DDR4-2666MHz Samsung, Disk: 120GB Force MP500, Graphics: ASPEED ASPEED Family, Monitor: Acer P243W, Network: Broadcom Limited NetXtreme BCM5720 Gigabit PCIe

	OS: Debian 9.1, Kernel: 4.14.0-rc1-zen-hwmon (x86_64) 20170919, Desktop: GNOME Shell 3.22.3, Compiler: GCC 8.0.0 20170917, File-System: ext4, Screen Resolution: 1920x1200

-O3 -march=znver1: 

	Processor: AMD EPYC 7601 32-Core @ 2.20GHz (64 Cores), Motherboard: TYAN B8026T70AE24HR, Chipset: AMD Device 1450, Memory: 8 x 16384 MB DDR4-2666MHz Samsung, Disk: 120GB Force MP500, Graphics: ASPEED ASPEED Family, Monitor: Acer P243W, Network: Broadcom Limited NetXtreme BCM5720 Gigabit PCIe

	OS: Debian 9.1, Kernel: 4.14.0-rc1-zen-hwmon (x86_64) 20170919, Desktop: GNOME Shell 3.22.3, Compiler: GCC 8.0.0 20170917, File-System: ext4, Screen Resolution: 1920x1200


BLAKE2 20130131

Cycles Per Byte < Lower Is Better
-O3- march=opteron-sse3 . 7.07 |===============================================
-O3 -march=btver2 ....... 7.07 |===============================================
-O3 -march=znver1 ....... 7.07 |===============================================


C-Ray 1.1
Total Time
Seconds < Lower Is Better
-O3- march=opteron-sse3 . 4.17 |===============================================
-O3 -march=btver2 ....... 2.73 |===============================
-O3 -march=znver1 ....... 3.20 |====================================


FLAC Audio Encoding 1.3.1
WAV To FLAC
Seconds < Lower Is Better
-O3- march=opteron-sse3 . 12.38 |==============================================
-O3 -march=btver2 ....... 6.54  |========================
-O3 -march=znver1 ....... 7.16  |===========================


GraphicsMagick 1.3.19
Operation: Blur
Iterations Per Minute > Higher Is Better
-O3- march=opteron-sse3 . 152 |=============================================
-O3 -march=btver2 ....... 160 |===============================================
-O3 -march=znver1 ....... 163 |================================================


GraphicsMagick 1.3.19
Operation: Sharpen
Iterations Per Minute > Higher Is Better
-O3- march=opteron-sse3 . 164 |=========================================
-O3 -march=btver2 ....... 168 |==========================================
-O3 -march=znver1 ....... 193 |================================================


GraphicsMagick 1.3.19
Operation: Resizing
Iterations Per Minute > Higher Is Better
-O3- march=opteron-sse3 . 199 |==============================================
-O3 -march=btver2 ....... 207 |================================================
-O3 -march=znver1 ....... 205 |================================================


GraphicsMagick 1.3.19
Operation: HWB Color Space
Iterations Per Minute > Higher Is Better
-O3- march=opteron-sse3 . 209 |==============================================
-O3 -march=btver2 ....... 219 |================================================
-O3 -march=znver1 ....... 216 |===============================================


GraphicsMagick 1.3.19
Operation: Local Adaptive Thresholding
Iterations Per Minute > Higher Is Better
-O3- march=opteron-sse3 . 109 |=============================================
-O3 -march=btver2 ....... 115 |================================================
-O3 -march=znver1 ....... 114 |================================================


LAME MP3 Encoding 3.99.5
WAV To MP3
Seconds < Lower Is Better
-O3- march=opteron-sse3 . 12.65 |==============================================
-O3 -march=btver2 ....... 11.79 |===========================================
-O3 -march=znver1 ....... 10.92 |========================================


OpenSSL 1.0.1g
RSA 4096-bit Performance
Signs Per Second > Higher Is Better
-O3- march=opteron-sse3 . 3326.90 |============================================
-O3 -march=btver2 ....... 3338.10 |============================================
-O3 -march=znver1 ....... 3334.70 |============================================


SciMark 2.0
Computational Test: Composite
Mflops > Higher Is Better
-O3- march=opteron-sse3 . 1011.93 |=========================
-O3 -march=btver2 ....... 1734.13 |===========================================
-O3 -march=znver1 ....... 1775.27 |============================================


SciMark 2.0
Computational Test: Monte Carlo
Mflops > Higher Is Better
-O3- march=opteron-sse3 . 560.70 |=============================================
-O3 -march=btver2 ....... 239.28 |===================
-O3 -march=znver1 ....... 243.30 |====================


SciMark 2.0
Computational Test: Fast Fourier Transform
Mflops > Higher Is Better
-O3- march=opteron-sse3 . 166.42 |=============================================
-O3 -march=btver2 ....... 127.81 |===================================
-O3 -march=znver1 ....... 125.01 |==================================


SciMark 2.0
Computational Test: Sparse Matrix Multiply
Mflops > Higher Is Better
-O3- march=opteron-sse3 . 1437.41 |==========================
-O3 -march=btver2 ....... 2307.05 |==========================================
-O3 -march=znver1 ....... 2435.71 |============================================


SciMark 2.0
Computational Test: Dense LU Matrix Factorization
Mflops > Higher Is Better
-O3- march=opteron-sse3 . 1472.06 |==============
-O3 -march=btver2 ....... 4567.42 |============================================
-O3 -march=znver1 ....... 4391.92 |==========================================


SciMark 2.0
Computational Test: Jacobi Successive Over-Relaxation
Mflops > Higher Is Better
-O3- march=opteron-sse3 . 1423.04 |=====================================
-O3 -march=btver2 ....... 1429.08 |=====================================
-O3 -march=znver1 ....... 1680.41 |============================================