AMD Bulldozer Compiler Optimizations
Testing GCC 4.6, GCC 4.7 snapshot, and Open64 4.2.4 compilers on an AMD FX-8150 Bulldozer CPU. Testing with stock compiler support and then when the CFLAGS/CXXFLAGS with having mtune/march options for Bulldozer (bdver1) set. Benchmarking by Michael Larabel for a future article on Phoronix.com.


GCC 4.6.1: Stock: 

	Processor: AMD FX-8150 Eight-Core @ 3.61GHz (8 Cores), Motherboard: ASUS Crosshair V Formula, Chipset: ATI RD890 PCI to PCI bridge, Memory: 8192MB, Disk: 60GB OCZ VERTEX2, Graphics: NVIDIA GeForce GTX 460 768MB (675/1800MHz), Audio: Realtek ALC889, Network: Intel 82583V Gigabit Connection

	OS: Ubuntu 11.10, Kernel: 3.1.0-rc10-ic-aliasing-patch+ (x86_64), Desktop: Unity 4.22.0, Display Server: X Server 1.10.4, Display Driver: NVIDIA 285.05.09, OpenGL: 4.2.0 NVIDIA 285.05.09, Compiler: GCC 4.6.1, File-System: ext4, Screen Resolution: 1920x1080

GCC 4.6.1: bdver1: 

	Processor: AMD FX-8150 Eight-Core @ 3.61GHz (8 Cores), Motherboard: ASUS Crosshair V Formula, Chipset: ATI RD890 PCI to PCI bridge, Memory: 8192MB, Disk: 60GB OCZ VERTEX2, Graphics: NVIDIA GeForce GTX 460 768MB (675/1800MHz), Audio: Realtek ALC889, Network: Intel 82583V Gigabit Connection

	OS: Ubuntu 11.10, Kernel: 3.1.0-rc10-ic-aliasing-patch+ (x86_64), Desktop: Unity 4.22.0, Display Server: X Server 1.10.4, Display Driver: NVIDIA 285.05.09, OpenGL: 4.2.0 NVIDIA 285.05.09, Compiler: GCC 4.6.1, File-System: ext4, Screen Resolution: 1920x1080

GCC 4.7-20111015: Stock: 

	Processor: AMD FX-8150 Eight-Core @ 3.61GHz (8 Cores), Motherboard: ASUS Crosshair V Formula, Chipset: ATI RD890 PCI to PCI bridge, Memory: 8192MB, Disk: 60GB OCZ VERTEX2, Graphics: NVIDIA GeForce GTX 460 768MB (675/1800MHz), Audio: Realtek ALC889, Network: Intel 82583V Gigabit Connection

	OS: Ubuntu 11.10, Kernel: 3.1.0-rc10-ic-aliasing-patch+ (x86_64), Desktop: Unity 4.22.0, Display Server: X Server 1.10.4, Display Driver: NVIDIA 285.05.09, OpenGL: 4.2.0 NVIDIA 285.05.09, Compiler: GCC 4.7.0, File-System: ext4, Screen Resolution: 1920x1080

GCC 4.7-20111015: bdver1: 

	Processor: AMD FX-8150 Eight-Core @ 3.61GHz (8 Cores), Motherboard: ASUS Crosshair V Formula, Chipset: ATI RD890 PCI to PCI bridge, Memory: 8192MB, Disk: 60GB OCZ VERTEX2, Graphics: NVIDIA GeForce GTX 460 768MB (675/1800MHz), Audio: Realtek ALC889, Network: Intel 82583V Gigabit Connection

	OS: Ubuntu 11.10, Kernel: 3.1.0-rc10-ic-aliasing-patch+ (x86_64), Desktop: Unity 4.22.0, Display Server: X Server 1.10.4, Display Driver: NVIDIA 285.05.09, OpenGL: 4.2.0 NVIDIA 285.05.09, Compiler: GCC 4.7.0, File-System: ext4, Screen Resolution: 1920x1080

Open64 4.2.4: Stock: 

	Processor: AMD FX-8150 Eight-Core @ 3.61GHz (8 Cores), Motherboard: ASUS Crosshair V Formula, Chipset: ATI RD890 PCI to PCI bridge, Memory: 8192MB, Disk: 60GB OCZ VERTEX2, Graphics: NVIDIA GeForce GTX 460 768MB (675/1800MHz), Audio: Realtek ALC889, Network: Intel 82583V Gigabit Connection

	OS: Ubuntu 11.10, Kernel: 3.1.0-rc10-ic-aliasing-patch+ (x86_64), Desktop: Unity 4.22.0, Display Server: X Server 1.10.4, Display Driver: NVIDIA 285.05.09, OpenGL: 4.2.0 NVIDIA 285.05.09, Compiler: Open64 4.2.4, File-System: ext4, Screen Resolution: 1920x1080

Open64 4.2.4: bdver1: 

	Processor: AMD FX-8150 Eight-Core @ 3.61GHz (8 Cores), Motherboard: ASUS Crosshair V Formula, Chipset: ATI RD890 PCI to PCI bridge, Memory: 8192MB, Disk: 60GB OCZ VERTEX2, Graphics: NVIDIA GeForce GTX 460 768MB (675/1800MHz), Audio: Realtek ALC889, Network: Intel 82583V Gigabit Connection

	OS: Ubuntu 11.10, Kernel: 3.1.0-rc10-ic-aliasing-patch+ (x86_64), Desktop: Unity 4.22.0, Display Server: X Server 1.10.4, Display Driver: NVIDIA 285.05.09, OpenGL: 4.2.0 NVIDIA 285.05.09, Compiler: Open64 4.2.4, File-System: ext4, Screen Resolution: 1920x1080


POV-Ray 3.6.1
Total Time
Seconds < Lower Is Better
GCC 4.6.1: Stock ......... 822 |=============================================
GCC 4.6.1: bdver1 ........ 636 |===================================
GCC 4.7-20111015: Stock .. 851 |===============================================
GCC 4.7-20111015: bdver1 . 636 |===================================
Open64 4.2.4: Stock ...... 823 |=============================================
Open64 4.2.4: bdver1 ..... 705 |=======================================


GraphicsMagick 1.3.12
Operation: HWB Color Space
Iterations Per Minute > Higher Is Better
GCC 4.6.1: Stock ......... 162 |===============================================
GCC 4.6.1: bdver1 ........ 83  |========================
GCC 4.7-20111015: Stock .. 163 |===============================================
GCC 4.7-20111015: bdver1 . 83  |========================
Open64 4.2.4: Stock ...... 86  |=========================
Open64 4.2.4: bdver1 ..... 88  |=========================


GraphicsMagick 1.3.12
Operation: Blur
Iterations Per Minute > Higher Is Better
GCC 4.6.1: Stock ......... 98 |================================================
GCC 4.6.1: bdver1 ........ 59 |=============================
GCC 4.7-20111015: Stock .. 98 |================================================
GCC 4.7-20111015: bdver1 . 60 |=============================
Open64 4.2.4: Stock ...... 59 |=============================
Open64 4.2.4: bdver1 ..... 60 |=============================


GraphicsMagick 1.3.12
Operation: Local Adaptive Thresholding
Iterations Per Minute > Higher Is Better
GCC 4.6.1: Stock ......... 68 |================================================
GCC 4.6.1: bdver1 ........ 31 |======================
GCC 4.7-20111015: Stock .. 68 |================================================
GCC 4.7-20111015: bdver1 . 30 |=====================
Open64 4.2.4: Stock ...... 20 |==============
Open64 4.2.4: bdver1 ..... 19 |=============


GraphicsMagick 1.3.12
Operation: Resizing
Iterations Per Minute > Higher Is Better
GCC 4.6.1: Stock ......... 131 |===============================================
GCC 4.6.1: bdver1 ........ 66  |========================
GCC 4.7-20111015: Stock .. 127 |==============================================
GCC 4.7-20111015: bdver1 . 67  |========================
Open64 4.2.4: Stock ...... 69  |=========================
Open64 4.2.4: bdver1 ..... 70  |=========================


GraphicsMagick 1.3.12
Operation: Sharpen
Iterations Per Minute > Higher Is Better
GCC 4.6.1: Stock ......... 65 |================================================
GCC 4.6.1: bdver1 ........ 39 |=============================
GCC 4.7-20111015: Stock .. 65 |================================================
GCC 4.7-20111015: bdver1 . 40 |==============================
Open64 4.2.4: Stock ...... 35 |==========================
Open64 4.2.4: bdver1 ..... 35 |==========================


Gcrypt Library 1.4.4
CAMELLIA256-ECB Cipher
Microseconds < Lower Is Better
GCC 4.6.1: Stock ......... 2263  |========
GCC 4.6.1: bdver1 ........ 12723 |=============================================
GCC 4.7-20111015: Stock .. 2503  |=========
GCC 4.7-20111015: bdver1 . 10977 |=======================================
Open64 4.2.4: Stock ...... 1960  |=======
Open64 4.2.4: bdver1 ..... 1993  |=======