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

Running GCC 4.9 With Intel's Core i7 "Core-AVX2"

Compiler

Published on 27 June 2013 01:32 AM EDT
Written by Michael Larabel in Compiler
Comment On This Article

I've already delivered GCC vs. LLVM Clang compiler benchmarks on Intel's Core i7 4770K "Haswell" platform and tested the "core-avx2" optimizations offered by the latest compilers. That previous testing was done from the stable releases of LLVM Clang 3.1/3.2 and GCC 4.7/4.8 releases, but looking ahead, here's some benchmarks of the latest GCC 4.9 development snapshot.

GCC 4.8.1 stable was benchmarked against the GCC 4.9 2013-06-23 snapshot to see if there's any other performance changes yet for this next compiler release. Version 4.9 of the GNU Compiler Collection isn't expected until 2014 with the 4.8 series having just been stabilized in March. Among the changes already found in GCC 4.9 is colorizing of GCC diagnostics, many C++1y features have been implemented, and other changes have taken place.

Anyhow, the quick benchmarks between GCC 4.8.1 and GCC 4.9.0 2013-06-23 from the Core i7 4770K system can be found on OpenBenchmarking.org within 1306266-SO-GCC49INTE20. The CFLAGS/CXXFLAGS during testing were set to -O3 and -march=core-avx2 for hitting all of the Intel Haswell CPU instruction set extensions.

For many CPU benchmarks, GCC 4.9 doesn't (yet) deliver any major performance changes over the binaries yielded by GCC 4.8.1.

For some benchmarks though, the GCC 4.9 SVN code is already getting faster, at least for the high-end Intel Core i7 Haswell processor.

One of the test cases where GCC 4.9.0 yielded the biggest leap in performance was the Himeno Pressure Solver.

See the rest of these early GCC 4.9 Intel x86_64 Linux benchmarks at OpenBenchmarking.org.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux Hardware Reviews
  1. Trying The Configurable 45 Watt TDP With AMD's A10-7800 / A6-7400K
  2. Sumo's Omni Gets Reloaded
  3. AMD A10-7800 & A6-7400K APUs Run Great On Linux
  4. Radeon Gallium3D Is Running Increasingly Well Against AMD's Catalyst Driver
Latest Linux Articles
  1. Intel Sandy Bridge Gets A Surprise Boost From Linux 3.17
  2. Open-Source Radeon Graphics Have Some Improvements On Linux 3.17
  3. CPUFreq Scaling Tests With AMD's Kaveri On Linux 3.16
  4. Enabling HyperZ Is Still An Easy Way For Faster RadeonSI Performance
Latest Linux News
  1. NVIDIA Releases CUDA 6.5 As A Huge Update
  2. GNOME 3.14 Beta Makes GLSL Optional, Supports Wayland Gesture/Touch Events
  3. KDE Software Compilation 4.14 Released
  4. The Many Things You Can Build With A Raspberry Pi
  5. AMD's Catalyst Linux Driver Preparing For A World Without An X Server?
  6. Khronos Publishes Its Slides About OpenGL-Next
  7. Proposed: A Tainted Performance State For The Linux Kernel
  8. Systemd 216 Piles On More Features, Aims For New User-Space VT
  9. LXQt 0.8 Is Being Released Soon
  10. Linux 3.17 Lands Memfd, A KDBUS Prerequisite
Latest Forum Discussions
  1. Remote gui not accessible in Phoronix Test Suite 5.2
  2. The dangers of Linux kernel development
  3. Dead Island for Linux (?)
  4. Updated and Optimized Ubuntu Free Graphics Drivers
  5. AMD Offers Mantle For OpenGL-Next, Pushes Mantle To Workstations
  6. Next-Gen OpenGL To Be Announced Next Month
  7. OpenGL 4.5 Released With New Features
  8. Updated graphics drivers for Ubuntu 12.04 Precise LTS