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

Testing LLVM Clang 3.5's Code Generation Optimizations

Michael Larabel

Published on 28 June 2014
Written by Michael Larabel
Page 1 of 5 - 3 Comments

For those curious about the performance of LLVM Clang in its current development form when testing the common code generation options for optimizing the performance (and in some cases size) of the resulting binaries, here's some fresh compiler benchmarks.

Just as some extra benchmarks for the weekend while finishing out the month, I ran some new benchmarks comparing common optimization levels for LLVM/Clang with the latest 3.5 development code as of earlier this month. The configurations tested for this article included:

-O0
-O1
-O2
-Os
-Oz
-O3
-Ofast
-O3 -march=native

There aren't any breakthrough changes with the code generation optimizations for Clang 3.5 on x86_64, but simply here's some fresh benchmark results with an array of open-source C/C++ tests done from an Intel Core i7 4790K Devil's Canyon system running Ubuntu 14.04 with the Linux 3.16 development kernel. The code generation options were controlled through the CFLAGS/CXXFLAGS.

Take these reference compiler results as you wish or feel free to run your own compiler benchmarks using the Phoronix Test Suite.

<< Previous Page
1
Latest Linux Hardware Reviews
  1. Intel Launches The Core i7 5960X, Mighty Powerful Haswell-E CPUs
  2. AMD Radeon R9 290: Gallium3D vs. Catalyst Drivers
  3. AMD Radeon R9 290 Open-Source Driver Works, But Has A Ways To Go
  4. Trying The Configurable 45 Watt TDP With AMD's A10-7800 / A6-7400K
Latest Linux Articles
  1. How Intel Graphics On Linux Compare To Open-Source AMD/NVIDIA Drivers
  2. The Fastest NVIDIA GPUs For Open-Source Nouveau With Steam Linux Gaming
  3. Testing For The Latest Linux Kernel Power Regression
  4. The Most Energy Efficient Radeon GPU For AMD Linux Gaming
Latest Linux News
  1. AMD, Wine & Valve Dominated August For Linux Users
  2. Linux 3.17-rc3 Kernel Released Back On Schedule
  3. Lennart Poettering Talks Up His New Linux Vision That Involves Btrfs
  4. Mesa 10.3 RC2 Arrives Via Its New Release Manager
  5. Ubuntu 14.10's Lack Of X.Org Server 1.16 Gets Blamed On AMD
  6. MSI Motherboard BIOS Updating Remains A Pain For Linux Users
  7. See How Your Linux System Performs Against The Latest Intel/AMD CPUs
  8. AMD Steppe Eagle Flys To Coreboot
  9. Intel Beignet Is Working Out Surprisingly Well For OpenCL On Linux
  10. Coreboot Adds Lenovo X220 With Native Sandy Bridge Support
Latest Forum Discussions
  1. SSD seems slow
  2. AMD Releases UVD Video Decode Support For R600 GPUs
  3. Is laptop with Intel CPU and AMD dGPU worth buying considering especially AMD Enduro?
  4. Btrfs Gets Talked Up, Googler Encourages You To Try Btrfs
  5. Radeon HD5670 and Ubuntu 14.04
  6. Updated graphics drivers for Ubuntu 12.04 Precise LTS
  7. Catalyst 14.201.1008
  8. It's Now Possible To Play Netflix Natively On Linux Without Wine Plug-Ins