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 Benchmarking Platform
Phoromatic Test Orchestration

LLVM/Clang 3.2 Compiler Competing With GCC

Michael Larabel

Published on 27 December 2012
Written by Michael Larabel
Page 1 of 5 - 20 Comments

With last week's release of LLVM 3.2, here are new benchmarks of LLVM 3.2 with the Clang C/C++ compiler front-end. The LLVM/Clang 3.2 performance using last week's source code releases were compared to the earlier LLVM/Clang 3.1 release and then for competition was the GCC 4.7.2 stable release and the latest GCC 4.8.0 development snapshot.

First of all, for those not familiar with the new capabilities introduced by LLVM/Clang 3.2, read What Features LLVM/Clang 3.2 Bring To The Table as it covers all of the major features introduced to this second LLVM release of 2012.

LLVM/Clang 3.1, LLVM/Clang 3.2, GCC 4.7.2, and GCC 4.8.0 20121223 were the candidates for testing using the official source packages and building them all under an Ubuntu 13.04 snapshot. All of the compilers were built in their release/optimized modes (for LLVM/Clang with no assertions and enabling the optimized mode while GCC had the release checking mode enabled). All of the testing from Ubuntu 13.04 with the Linux 3.7 kernel was done from an Intel Core i7 3770K "Ivy Bridge" CPU. The CFLAGS/CXXFLAGS were set to "-O3 -march=native" during the testing process.

Additional LLVM/Clang 3.2 benchmarks are forthcoming to look at different compiler tuning/switches and their impact on performance as well as analysis in other areas for this increasingly popular and useful compiler infrastructure. All benchmarking was handled via the Phoronix Test Suite.

Latest Articles & Reviews
  1. Ubuntu 15.04 Offers Faster OpenGL For AMD Radeon GPUs On Open-Source
  2. Ubuntu 15.04 Brings Some Graphics Performance Improvements For Intel Haswell
  3. Sub-$20 802.11n USB WiFi Adapter That's Linux Friendly
  4. The Lenovo T450s Is Working Beautifully With Linux
  5. Linux 4.0 SSD EXT4 / Btrfs / XFS / F2FS Benchmarks
  6. Linux 4.0 Hard Drive Comparison With Six File-Systems
Latest Linux News
  1. Linux 4.1-rc1 Kernel Released, Packs In Several New Features
  2. It Doesn't Look Like KDBUS Will Make It For Linux 4.1
  3. Debian 9.0 Is Codenamed Stretch
  4. AMD Radeon GPUs With Linux 4.0 + Mesa 10.6-devel
  5. The Many Features Of The Linux 4.1 Kernel
  6. HTTPS For Phoronix.com
  7. Gallium3D's HUD Gets New Customization Options
  8. Intel Xeon E5-2620 v3 Haswell Performance
  9. Dell Keyboard Backlight Support In Linux 4.1
  10. With Linux 4.1 You Can Play With The Chrome OS Lightbar
Most Viewed News This Week
  1. AMD Releases New "AMDGPU" Linux Kernel Driver & Mesa Support
  2. Ubuntu's Desktop-Next Switching From .DEBs To Snappy
  3. Systemd Kills Off Shutdownd
  4. My Favorite Computer Desk Of The Past Decade For Less Than $100
  5. AMD Open-Sources "Addrlib" From Catalyst
  6. Debian 8.0 Jessie Is Ready For Release This Weekend
  7. GIMP's Porting To GTK3 Continues
  8. Qt Creator 3.4 Brings C++ Programming Improvements & More