AMD FX-8150 Bulldozer bdver1 GCC 4.7 Tuning
Using GCC 4.7.0 on an AMD FX-8150 Bulldozer eight-core CPU from an ASUS motherboard running a near final Ubuntu 12.04 LTS x86_64 with the Linux 3.2 kernel. Testing of vanilla GCC 4.7..0 and running some open-source computational tests when using CFLAGS/CXXFLAGS of -O3 and then varying -march= flags. The march= GCC 4.7 options tested for the AMD Bulldozer FX-8150 were k8, k8-sse3, barcelona, btver1, and bdver1 (optimal). Testing for a future article on Phoronix.com by Michael Larabel.


march=k8: 

	Processor: AMD FX-8150 Eight-Core @ 3.60GHz (8 Cores), Motherboard: ASUS Crosshair V Formula, Chipset: AMD nee ATI RD890, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: AMD Radeon HD 6570 512MB, Audio: Realtek ALC889, Monitor: DELL P2210H, Network: Intel 82583V Gigabit Connection

	OS: Ubuntu 12.04, Kernel: 3.2.0-20-generic (x86_64), Desktop: Unity 5.6.0, Display Server: X Server 1.11.3, Display Driver: radeon 6.14.99, OpenGL: 2.1 Mesa 8.0.2 Gallium 0.4, Compiler: GCC 4.7.0, File-System: ext4, Screen Resolution: 1920x1080

march=k8-sse3: 

	Processor: AMD FX-8150 Eight-Core @ 3.60GHz (8 Cores), Motherboard: ASUS Crosshair V Formula, Chipset: AMD nee ATI RD890, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: AMD Radeon HD 6570 512MB, Audio: Realtek ALC889, Monitor: DELL P2210H, Network: Intel 82583V Gigabit Connection

	OS: Ubuntu 12.04, Kernel: 3.2.0-20-generic (x86_64), Desktop: Unity 5.6.0, Display Server: X Server 1.11.3, Display Driver: radeon 6.14.99, OpenGL: 2.1 Mesa 8.0.2 Gallium 0.4, Compiler: GCC 4.7.0, File-System: ext4, Screen Resolution: 1920x1080

march=btver1: 

	Processor: AMD FX-8150 Eight-Core @ 3.60GHz (8 Cores), Motherboard: ASUS Crosshair V Formula, Chipset: AMD nee ATI RD890, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: AMD Radeon HD 6570 512MB, Audio: Realtek ALC889, Monitor: DELL P2210H, Network: Intel 82583V Gigabit Connection

	OS: Ubuntu 12.04, Kernel: 3.2.0-20-generic (x86_64), Desktop: Unity 5.6.0, Display Server: X Server 1.11.3, Display Driver: radeon 6.14.99, OpenGL: 2.1 Mesa 8.0.2 Gallium 0.4, Compiler: GCC 4.7.0, File-System: ext4, Screen Resolution: 1920x1080

march=barcelona: 

	Processor: AMD FX-8150 Eight-Core @ 3.60GHz (8 Cores), Motherboard: ASUS Crosshair V Formula, Chipset: AMD nee ATI RD890, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: AMD Radeon HD 6570 512MB, Audio: Realtek ALC889, Monitor: DELL P2210H, Network: Intel 82583V Gigabit Connection

	OS: Ubuntu 12.04, Kernel: 3.2.0-20-generic (x86_64), Desktop: Unity 5.6.0, Display Server: X Server 1.11.3, Display Driver: radeon 6.14.99, OpenGL: 2.1 Mesa 8.0.2 Gallium 0.4, Compiler: GCC 4.7.0, File-System: ext4, Screen Resolution: 1920x1080

march=bdver1: 

	Processor: AMD FX-8150 Eight-Core @ 3.60GHz (8 Cores), Motherboard: ASUS Crosshair V Formula, Chipset: AMD nee ATI RD890, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: AMD Radeon HD 6570 512MB, Audio: Realtek ALC889, Monitor: DELL P2210H, Network: Intel 82583V Gigabit Connection

	OS: Ubuntu 12.04, Kernel: 3.2.0-20-generic (x86_64), Desktop: Unity 5.6.0, Display Server: X Server 1.11.3, Display Driver: radeon 6.14.99, OpenGL: 2.1 Mesa 8.0.2 Gallium 0.4, Compiler: GCC 4.7.0, File-System: ext4, Screen Resolution: 1920x1080


GraphicsMagick 1.3.12
Operation: Blur
Iterations Per Minute > Higher Is Better
march=k8 ........ 99  |===============================================
march=k8-sse3 ... 95  |=============================================
march=btver1 .... 98  |===============================================
march=barcelona . 107 |===================================================
march=bdver1 .... 117 |========================================================


GraphicsMagick 1.3.12
Operation: Resizing
Iterations Per Minute > Higher Is Better
march=k8 ........ 130 |=================================================
march=k8-sse3 ... 129 |=================================================
march=btver1 .... 130 |=================================================
march=barcelona . 140 |=====================================================
march=bdver1 .... 148 |========================================================


GraphicsMagick 1.3.12
Operation: Sharpen
Iterations Per Minute > Higher Is Better
march=k8 ........ 64  |===================================
march=k8-sse3 ... 64  |===================================
march=btver1 .... 65  |====================================
march=barcelona . 88  |================================================
march=bdver1 .... 102 |========================================================


Himeno Benchmark 3.0
Poisson Pressure Solver
MFLOPS > Higher Is Better
march=k8 ........ 533.49 |===========================================
march=k8-sse3 ... 651.44 |====================================================
march=btver1 .... 661.76 |=====================================================
march=barcelona . 662.40 |=====================================================
march=bdver1 .... 596.68 |================================================


C-Ray 1.1
Total Time
Seconds < Lower Is Better
march=k8 ........ 52.73 |======================================================
march=k8-sse3 ... 52.75 |======================================================
march=btver1 .... 47.30 |================================================
march=barcelona . 36.00 |=====================================
march=bdver1 .... 26.92 |============================