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

GCC & LLVM Clang Performance On The Intel Atom

Michael Larabel

Published on 1 December 2010
Written by Michael Larabel
Page 1 of 6 - 14 Comments

A few weeks ago there were benchmarks of GCC, LLVM-GCC, DragonEgg, and Clang. In this compiler performance comparison the releases of GCC 4.2, 4.3, 4.4, 4.5, and a 4.6 development snapshot were benchmarked. On the LLVM side there was LLVM-GCC 4.2, DragonEgg with GCC 4.5 and LLVM 2.8, and then Clang with LLVM 2.8. This combination of eight open-source compilers were tested on three distinct Intel and AMD systems (even a 12-thread Core i7 Gulftown), but all of which were 64-bit capable and contained relatively high-end processors from their respective series. To complement this earlier article, available now are some new GCC/LLVM benchmarks but this time an older Intel Atom CPU was used to look at the 32-bit compiler performance on a slower, low-power netbook.

This round of Linux compiler testing is quite similar to the earlier article from November but there are a few differences. Among the differences, the latest point release in each major GCC release was used (i.e. GCC 4.4.5 versus GCC 4.4.0). This led the GCC benchmarks on the Intel Atom netbook to be GCC 4.2.4, 4.3.5, 4.4.5, 4.5.1, and 4.6.0-20101120. Though as the Intel Atom N270 processor is significantly slower than an Intel Core i7 970, AMD Opteron workstation CPUs, and other similar x86/x86_64 processors, for this article we left out from re-testing LLVM-GCC and DragonEgg, due to the significant time it takes to build each compiler, re-build all of the tests, and then finally execute the tests. Granted, it is all automated via the Phoronix Test Suite and Phoromatic, but the focus of this article is going to be on the GCC and LLVM Clang performance on the original Intel Atom since those are the two most popular compiler choices at this time.

This Intel Atom netbook was the Samsung NC10 with an Intel N270 1.60GHz processor, Intel 945GME + ICH7-M motherboard, 2GB of system memory, a 32GB OCZ Core SSD, and Intel 945 integrated graphics. On the software side it was running Ubuntu 10.04.1 LTS with the Linux 2.6.32 i686 kernel, GNOME 2.30.2, X.Org Server 1.7.6, xf86-video-intel 2.9.1, and an EXT4 file-system.

The tests from the Phoronix Test Suite included Apache, OpenSSL, John The Ripper, BYTE Unix Benchmark, C-Ray, Himeno, MAFFT, HMMer, 7-Zip, LAME MP3, FLAC, x264, and GraphicsMagick. Lastly, the Phoronix Test Suite 3.0 "Iveland" code also timed the compilation of the Apache web-server and ImageMagick.

Latest Linux News
  1. Using The New LLVM/Clang OpenMP Support
  2. Zapcc Claims To Be A "Much Faster C++ Compiler"
  3. Godot 1.1 Engine Release Brings New 2D Engine
  4. Intel VA-API Driver 1.6 Is Coming
  5. Canonical Is Reportedly Considering An IPO
  6. GNOME 3.18 - GTK3 Now Supports RandR 1.5
  7. Fedora 22 Risks Being Delayed Beyond Next Week
  8. Systemd 220 Has Finally Been Released
  9. LibreOffice 5.0 Beta 1 Released
  10. Allwinner Publishes New CedarX Open-Source Code
  11. ACPI 6 Non-Volatile Memory Device Support / NFIT / LIBND For Linux
  12. Fedora 22 Marches Closer To Release
Latest Articles & Reviews
  1. Btrfs RAID 0/1 Benchmarks On The Linux 4.1 Kernel
  2. The State Of Various Firefox Features
  3. Intel Iris Graphics Performance With Mesa 10.6
  4. Fedora Workstation 22 Is Looking Great, Running Fantastic
Most Viewed News This Week
  1. The Linux 4.0 Kernel Currently Has An EXT4 Corruption Issue
  2. Rust 1.0 Language Officially Released
  3. AMDGPU Open-Source Driver Code Continues Maturing
  4. Oculus Rift Suspends Linux Development To Focus On Windows
  5. Wine 1.7.43 Works On Desktop Shell Window Support
  6. Spec Ops: The Line Is The Latest Linux Shooter
  7. RadeonSI Gallium3D Driver To Be Enabled For Android
  8. Microsoft Open-Sources The Windows Communication Foundation