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 4.8 Has More Optimizations

Compiler

Published on 14 November 2012 01:21 AM EST
Written by Michael Larabel in Compiler
4 Comments

The GCC 4.8 compiler when released in early 2013 will have a number of new optimizations.

GCC 4.8 features improvements to link-time optimizations (LTO) with the LTO partitioning having been re-written for improved reliability and maintainability while fixing some link failures (see our GCC 4.7 LTO benchmarks). Aside from improving LTO, there's also improved inter-procedural optimizations. The interprocedural optimization improvements come from a new symbol table, improvements to the inline heuristicsm and better inlining decisions.

GCC 4.8 has also addressed some scalability bottlenecks within GCC's optimization passes that will benefit extremely large functions. There's also a new -ftree-partial-pre option for controlling partial redundancy elimination (PRE) optimizations.

Last but not least there is a new general optimization level for fast compilation but with superior debugging capabilities and still reasonable run-time performance.

Other new features to version 4.8 of the GNU Compiler Collection are talked about in this article.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Articles & Reviews
  1. Trying Out The Modern Linux Desktops With 4 Monitors + AMD/NVIDIA Graphics
  2. Turning A Basement Into A Big Linux Server Room
  3. NVIDIA's $1000+ GeForce GTX TITAN X Delivers Maximum Linux Performance
  4. OS X 10.10 vs. Ubuntu 15.04 vs. Fedora 21 Tests: Linux Sweeps The Board
  5. The New Place Where Linux Code Is Constantly Being Benchmarked
  6. 18-GPU NVIDIA/AMD Linux Comparison Of BioShock: Infinite
Latest Linux News
  1. PulseAudio 7.0 To Enable LFE Remixing By Default
  2. Features & Changes Coming For Mir 0.13
  3. How Far Valve Has Come: Three Years Ago They Needed OpenGL Linux Help
  4. Audacity 2.1 Improves Noise Reduction, Adds Real-Time Effects Preview
  5. Linux 4.0-rc6 Kernel Released
  6. Automatically Managing The Linux Benchmarks Firing Constantly
  7. The Big Features Of The Linux 4.0 Kernel
  8. Mesa's Android Support Is Currently In Bad Shape
  9. Wayland's Weston Terminal Can Now Be Minimized
  10. Phoronix - Working Towards Faster Page Loads
Most Viewed News This Week
  1. Introducing The Library Operating System For Linux
  2. Allwinner Continues Jerking Around The Open-Source Community
  3. Open-Source Driver Fans Will Love NVIDIA's New OpenGL Demo
  4. Systemd Change Allows For Stateless Systems With Tmpfs
  5. GNOME 3.16 Released: It's Their Best Release Yet
  6. GNOME Shell & Mutter 3.16.0 Released
  7. GNU Nano 2.4.0 Brings Complete Undo System, Linter Support & More
  8. Red Hat Is Rolling Out A VirtIO DRM/KMS GPU Driver