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 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. Ubuntu's Mir Gains Server-Side Platform Probing
  2. Broadwell Linux Ultrabook Running MUCH Cooler Than Haswell
  3. LZHAM 1.0 Lossless Data Compression Codec Released
  4. LibreOffice 4.4 Is Coming Soon With New Features
  5. Linux Users Upset By Chromium's Busted HiDPI Support
  6. BPF Backend Merged Into LLVM To Make Use Of New Kernel Functionality
  7. Dying Light Is Headed To Linux, SteamOS
  8. Wayland 1.6.1 & Weston 1.6.1 Released
  9. Mesa 10.4.3 Brings A Bunch Of Fixes For The Direct3D "Nine" Support
  10. Intel Has A Few More Graphics Changes For The Linux 3.20 Kernel
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