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

GCC Core-AVX2 "Haswell" CPU Optimization Tests

Compiler

Published on 01 September 2013 11:05 AM EDT
Written by Michael Larabel in Compiler
1 Comment

Our latest tests from an Intel Core i7 4900MQ "Haswell" laptop are looking at the impact of applying CPU compiler optimizations for this high-end "core-avx2" processor when using a recent GCC 4.9 development snapshot.

Months ago when Haswell was brand new I had already run some compiler optimization benchmarks looking to see the impact of the new CPU instruction set extensions added by Haswell provided. The results weren't too dramatic over the Ivy Bridge optimization level (core-avx-i), but this weekend I have some fresh results using a GCC 4.9 compiler development snapshot.

The -march= levels tested today on GCC 4.9 included nocona, core2, corei7, corei7-avx, core-avx-i, and core-avx2. For those unfamiliar with these compiler optimizations/tuning, refer to the online GCC documentation.

Overall there weren't any huge surprises, but the compiler benchmark results in full are available via clicking 1308319-SO-GCC49SNAP71. Embedded below are just a few of the more interesting results.


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. MSI X99S SLI PLUS On Linux
  2. NVIDIA GeForce GTX 970 Offers Great Linux Performance
  3. CompuLab Intense-PC2: An Excellent, Fanless, Mini PC Powered By Intel's i7 Haswell
  4. From The Atom 330 To Haswell ULT: Intel Linux Performance Benchmarks
Latest Linux Articles
  1. Open-Source Radeon 2D Performance Is Better With Ubuntu 14.10
  2. RunAbove: A POWER8 Compute Cloud With Offerings Up To 176 Threads
  3. 6-Way Ubuntu 14.10 Linux Desktop Benchmarks
  4. Ubuntu 14.10 XMir System Compositor Benchmarks
Latest Linux News
  1. Dead Island GOTY Now Available On Linux/SteamOS
  2. Ubuntu 14.04 In The Power8 Cloud From RunAbove
  3. KDE With Theoretical Client-Side Decorations, Windows 10 Influence
  4. Sandusky Lee: Great Cabinets For Storing All Your Computer Gear
  5. Fedora 21 Beta & Final Release Slip Further
  6. Mesa 10.3.2 Has A Couple Bug-Fixes
  7. RadeonSI/R600g HyperZ Support Gets Turned Back On
  8. openSUSE Factory & Tumbleweed Are Merging
  9. More Fedora Delays: Fedora 21 Beta Slips
  10. Mono Brings C# To The Unreal Engine 4
Latest Forum Discussions
  1. HOPE: The Ease Of Python With The Speed Of C++
  2. Use Ubuntu MATE 14.10 Make it an official distro.
  3. Users/Developers Threatening Fork Of Debian GNU/Linux
  4. Debian Is Back To Discussing Init Systems, Freedom of Choice
  5. AMD Radeon VDPAU Video Performance With Gallium3D
  6. Updated and Optimized Ubuntu Free Graphics Drivers
  7. Ubuntu 16.04 Might Be The Distribution's Last 32-Bit Release
  8. Linux hacker compares Solaris kernel code: