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

Apple's LLVM 3.1 Clanging On Intel Sandy Bridge

Michael Larabel

Published on 2 April 2012
Written by Michael Larabel
Page 1 of 4 - 14 Comments

After delivering benchmarks in March showing the performance gains of GCC 4.7 on Intel's Sandy Bridge processors, here's a look at how the latest LLVM/Clang 3.1 compiler from Apple is shaping up for these latest Intel CPUs.

As written about back in January, open-source compilers have matured for Intel Sandy/Ivy Bridge CPUs and are already prepping for Intel Haswell (2013). LLVM has received this work too. With LLVM 3.1, which will be released next month, there are "Bug fixes and improved support for AVX1" (as introduced on Intel Sandy Bridge CPUs, continued on with Ivy Bridge, and on the AMD side found with Bulldozer CPUs) while offering "Support for AVX2 (still incomplete at this point)." The Advanced Vector Extensions 2 (AVX2) instruction set is not coming to processors until next year with Haswell.

From the six-core Intel Core i7 3960X with Hyper Threading, LLVM/Clang 3.1 from a recent SVN snapshot was tested and compared to LLVM/Clang 3.0, GCC 4.6.3, and GCC 4.7.0. A variety of C/C++ benchmarks were run from this system with the $1000 USD Sandy Bridge Extreme Edition CPU that was overclocked to 4.5GHz.

All of the compilers were built in their respective release/optimized modes. CFLAGS/CXXFLAGS of "-O3 -march=corei7-avx" were set before test installation.

<< Previous Page
1
Latest Linux Hardware Reviews
  1. NVIDIA GeForce GTX 970 Offers Great Linux Performance
  2. CompuLab Intense-PC2: An Excellent, Fanless, Mini PC Powered By Intel's i7 Haswell
  3. From The Atom 330 To Haswell ULT: Intel Linux Performance Benchmarks
  4. AMD Radeon R9 285 Tonga Performance On Linux
Latest Linux Articles
  1. Btrfs RAID HDD Testing On Ubuntu Linux 14.10
  2. Ubuntu 14.10 Linux 32-bit vs. 64-bit Performance
  3. AMD Moves Forward With Unified Linux Driver Strategy, New Kernel Driver
  4. MSI: Update Your BIOS From The Linux Desktop
Latest Linux News
  1. Nouveau Now Supports DRI3 Without GLAMOR
  2. Features Of The Linux 3.18 Kernel
  3. Debian Now Defaults To Xfce On Non-x86 Desktops
  4. Phoenix Is Trying To Be An Open Version Of Apple's Swift
  5. Linux 3.19 To Have Skylake Graphics, PPGTT Enablement
  6. Ubuntu 16.04 Might Be The Distribution's Last 32-Bit Release
  7. Imagination Releases Full ISA Documentation For PowerVR Rogue GPUs
  8. Features GNOME Developers Want In The Linux Kernel
  9. GTK+ Gains Experimental Overlay Scrollbars
  10. Phoronix Test Suite 5.4 M3 Is Another Hearty Update
Latest Forum Discussions
  1. Users/Developers Threatening Fork Of Debian GNU/Linux
  2. AMD Releases UVD Video Decode Support For R600 GPUs
  3. HOPE: The Ease Of Python With The Speed Of C++
  4. Proof that strlcpy is un-needed
  5. xbox one tv tuner
  6. Bye bye BSD, Hello Linux: A Sys Admin's Story
  7. Updated and Optimized Ubuntu Free Graphics Drivers
  8. NVIDIA Presents Its Driver Plans To Support Mir/Wayland & KMS On Linux