1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

AMD's FX-8150 Bulldozer Benefits From New Compilers, Tuning

Michael Larabel

Published on 18 April 2012
Written by Michael Larabel
Page 1 of 7 - 40 Comments

After looking at how Intel's Sandy Bridge processor performance has evolved with the new GCC 4.7 compiler and Apple's forthcoming LLVM 3.1 with Clang, here are benchmark results from the AMD FX-8150 "Bulldozer" Eight-Core processor with GCC 4.7.0 and the latest LLVM/Clang 3.1 development code along with looking at the performance impact of various compiler tuning flags for this latest-generation AMD CPU. Making things even more interesting, AMD's Open64 4.5.1 compiler was also tossed into the testing mix.

First up are the results from AMD FX-8150 Bulldozer from the ASUS Crosshair V Formula when it was running Ubuntu 12.04 with the Linux 3.2 kernel and comparing GCC 4.7.0, LLVM/Clang 3.1 SVN, and AMD Open64 4.5.1. Each of the tests were done when the compilers were build the open-source test profiles with -march=k8 and -march=bdver1 as the compiler flags (and -O3 was set the entire time for all compilers for both the k8/bdver1 architecture optimizations). The new compilers have better AVX1 support and other x86 enhancements (along with initial AVX2 support, but that won't benefit the first-generation Bulldozers) and other new compiler features and improvements.

The k8 march flag enables compiler optimizations targeting the original AMD K8 processor while bdver1 enables all of the compiler optimizations/features of the first-generation AMD Bulldozer hardware, like AVX and FMA4 instructions. The three tested compilers were built in their release/optimized modes with the build configurations being shown on the Phoronix Test Suite system table above. All benchmarking was done via the Phoronix Test Suite and these results can be reproduced using OpenBenchmarking.org.

Latest Articles & Reviews
  1. Linux Compiler Benchmarks Of LLVM Clang 3.5 vs. LLVM Clang 3.6-rc1
  2. Intel Broadwell HD Graphics 5500: Windows 8.1 vs. Linux
  3. Linux Benchmarks Of NVIDIA's Early 2015 GeForce Line-Up
  4. NVIDIA GeForce GTX 960: A Great $200 GPU For Linux Gamers
  5. Disk Encryption Tests On Fedora 21
  6. Xonotic 0.8 Performance With The Open-Source AMD/NVIDIA Gallium3D Drivers
Latest Linux News
  1. Debian 8.0 "Jessie" Installer RC1 Released
  2. Chromebook "Rush" With 64-bit Tegra SoC Support Lands In Coreboot
  3. 2015 X.Org Elections Get Underway For Board Members, SPI Merger
  4. Linux 3.19-rc6 Kernel Released: LInux 3.19 Final In Two Weeks
  5. Ubuntu's Mir Gains Server-Side Platform Probing
  6. Broadwell Linux Ultrabook Running MUCH Cooler Than Haswell
  7. LZHAM 1.0 Lossless Data Compression Codec Released
  8. LibreOffice 4.4 Is Coming Soon With New Features
  9. Linux Users Upset By Chromium's Busted HiDPI Support
  10. BPF Backend Merged Into LLVM To Make Use Of New Kernel Functionality
Most Viewed News This Week
  1. Windows 10 To Be A Free Upgrade: What Linux Users Need To Know
  2. Google Admin Encourages Trying Btrfs, Not ZFS On Linux
  3. TraceFS: The Newest Linux File-System
  4. My Initial Intel Broadwell Linux Experience With The ThinkPad X1 Carbon
  5. Mozilla's Servo Still On Track For 2015 Alpha Release
  6. Fedora 23 Likely To Pursue Wayland By Default
  7. Keith Packard Leaves Intel's Linux Graphics Work
  8. A Proposal To Go 64-bit Only With Fedora 23