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. The MSI X99S SLI PLUS Is Working & Running Well On Linux
  2. NVIDIA GeForce GTX 980: The Best GPU For Linux Gamers
  3. ROCCAT LUA: A Linux-Friendly Gaming Mouse
  4. Cheetah Mounts: The Affordable Way To Put Your TV On The Wall
Latest Linux Articles
  1. Preview: Radeon Gallium3D Performance For CS:GO On Linux
  2. XWayland Linux Gaming Performance With GNOME Wayland On Fedora 21
  3. EXT4/Btrfs/XFS/F2FS Benchmarks On Linux 3.17
  4. Fedora 21 Alpha First Impressions: It's Great
Latest Linux News
  1. Dash As The Default Shell For Fedora?
  2. CUPS Turn 15 Years Old, CUPS 2.0 Released
  3. VA-API Gallium3D State Tracker Added Back To Mesa
  4. Radeon DRM Gets New Information Ioctl Queries
  5. Mir 0.8 Works On Less ABI Breakage, Touchspots, Responsiveness
  6. CS:GO For Linux Gains Better Stability, Community Server Support
  7. NVIDIA Issues Updated 340.46 Long-Lived Driver Release
  8. KDE Plasma 5.1 Now In Beta
  9. Systemd & Debian Were Most Popular In September
  10. Microsoft Announces... Windows 10 With A Start Menu
Latest Forum Discussions
  1. Microsoft Announces... Windows 10 With A Start Menu
  2. Take the Steam Survey results with a grain of salt. It is flawed.
  3. X.Org Is Looking For Some Female Help
  4. Hacking Express gate (Asus Splashtop)
  5. NVIDIA Alerts Nouveau: They're Starting To Sign/Validate GPU Firmware Images
  6. Updated and Optimized Ubuntu Free Graphics Drivers
  7. Nero CD/DVD Burning Software On Linux Is Dead
  8. New Group Calls For Boycotting Systemd