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 Benchmarking Platform
Phoromatic Test Orchestration

AMD Bulldozer "bdver1" Compiler Performance

Michael Larabel

Published on 15 November 2011
Written by Michael Larabel
Page 1 of 3 - 8 Comments

It is time for another round of compiler benchmarks on AMD's latest FX-8150 Bulldozer processor. In this article is comparing the GCC 4.6.1, GCC 4.7 development, Open64 4.2.4, and AMD Open64 4.2.5.2 compilers in their stock configuration, when the binaries are built again but with the march/mtune flags set to "bdver1", and a third when being built with the "bdver1" architecture and tuning flags along with "-Ofast" for the highest-level of compiler optimizations.

This article is in continuation of all the other Linux tests that have been done on Phoronix in recent weeks when reviewing the AMD FX-8150. The other articles include Multi-Core Scaling Performance Of AMD's Bulldozer, AMD Bulldozer With GCC, Open64, LLVM/Clang Compilers, LLVMpipe Performance On AMD Bulldozer, Intel Sandy Bridge, and Open64 Compiler Tuning On AMD Bulldozer FX-8150. The difference in this article is comparing the GCC and Open64 releases when being built in their stock configuration, with the bdver1 tuning, and then again with bdver1 plus the -Ofast mode.

This testing took place in late October with the latest compiler releases at the time. The next round of Bulldozer compiler tests will look at the performance of the brand new Open64 5.0 compiler, which does have more optimizations for these new AMD FX processors. Worth noting about Open64 4.2.4 and AMD Open64 4.2.5.2 is that when pairing the "-mtune=bdver1 -march=bdver1" CFLAGS/CXXFLAGS with "-Ofast", none of the binaries generated had worked. However, the binaries built by the two GCC releases with these flags had worked fine. For those out of the loop, "bdver1" is the family name to enable compiler optimizations for the first-generation AMD Bulldozer CPUs. There are optimizations for GCC and Open64, but bdver1 optimizations directly have not yet landed for LLVM/Clang, which is why that compiler stack was left out of today's tests.

Latest Linux News
  1. Fedora 22 Is Being Released Next Tuesday
  2. OpenWRT 15.05 Preparing Improved Security & Better Networking
  3. Using The New LLVM/Clang OpenMP Support
  4. Zapcc Claims To Be A "Much Faster C++ Compiler"
  5. Godot 1.1 Engine Release Brings New 2D Engine
  6. Intel VA-API Driver 1.6 Is Coming
  7. Canonical Is Reportedly Considering An IPO
  8. GNOME 3.18 - GTK3 Now Supports RandR 1.5
  9. Fedora 22 Risks Being Delayed Beyond Next Week
  10. Systemd 220 Has Finally Been Released
  11. LibreOffice 5.0 Beta 1 Released
  12. Allwinner Publishes New CedarX Open-Source Code
Latest Articles & Reviews
  1. Btrfs RAID 0/1 Benchmarks On The Linux 4.1 Kernel
  2. The State Of Various Firefox Features
  3. Intel Iris Graphics Performance With Mesa 10.6
  4. Fedora Workstation 22 Is Looking Great, Running Fantastic
Most Viewed News This Week
  1. The Linux 4.0 Kernel Currently Has An EXT4 Corruption Issue
  2. AMDGPU Open-Source Driver Code Continues Maturing
  3. Oculus Rift Suspends Linux Development To Focus On Windows
  4. Microsoft Open-Sources The Windows Communication Foundation
  5. LibreOffice 5.0 Open-Source Office Suite Has Been Branched
  6. Another HTTPS Vulnerability Rattles The Internet
  7. Wayland / Weston 1.8 Release Candidate Arrives
  8. Linux 4.1-rc4 Kernel Arrives A Day Late