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

A Slew Of Performance Improvements To Hit Compiz

Desktop

Published on 13 December 2012 02:06 PM EST
Written by Michael Larabel in Desktop
9 Comments

While publishing this morning was a large Ubuntu 13.04 OpenGL desktop performance comparison using six desktop environments and five different GPU/driver configurations, to result in 30 different data points for multiple Linux games, also announced today were forthcoming Compiz performance improvements. To land soon will be a number of performance enhancements for the Compiz compositing window manager.

Sam Spilsbury shared today via his blog about Compiz performance improvements and an experimental Personal Package Archive (PPA) being available on Launchpad.

The latest round of improvements for this compositing window manager used by Ubuntu include:

- Support for using the GLX_EXT_buffer_age extension. The only Linux graphics driver currently implementing this extension is the brand new NVIDIA 313.09 beta driver but support for this extension will soon land in Mesa/Gallium3D for the common open-source drivers when using a modern kernel for the latest DRM. The GLX_EXT_buffer_age extension will allow for tear-free rendering with the same level of performance as carrying out incremental updates to the back-buffer. Spilsbury says that in his simple tests of the buffer-age extension, there's been a 200 FPS increase.

- Support for the GL_EXT_blit_framebuffer extension. The GL_EXT_blit_framebuffer OpenGL extension can be used to enable fast frame-buffer copies when rendering with post-processing.

- A fix to avoid flooding the X.Org Server with ConfigureWindow requests upon window movement. This addresses a performance bottleneck on NVIDIA in certain situations.

- A window stacking bug-fix.

Spilsbury says in his blog post, "There should be an across-the-board framerate increase when using this PPA."

The PPA for these major Compiz performance enhancements are found from ppa:smspillaz/compiz-experimental. The new window manager packages are at version 0.9.9-1-experimental1+bzr3528-201212131812 and there's Debian builds available for Ubuntu 12.04 (Precise), 12.10 (Quantal), and 13.04 (Raring).

As I already shared on Twitter, coming out soon (likely tomorrow) will be some new OpenGL performance benchmarks with the experimental Compiz package to check out the performance improvements. The initial testing will likely be limited to a NVIDIA 313.09 setup with the GLX_EXT_buffer_age support while more thorough multi-desktop testing will be done as Ubuntu 13.04 nears and the next Compiz release stabilizes.

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. Intel Broadwell: GCC 4.9 vs. LLVM Clang 3.5 Compiler Benchmarks
  2. Ubuntu vs. Fedora Linux On Lenovo's X1 Carbon With Core i7 Broadwell
  3. Ubuntu 15.04 Is The Easy Path To Better Performance On Intel Broadwell
  4. NVIDIA's Latest Maxwell Line-Up Against AMD With Catalyst On Linux
  5. Preliminary Tests Of Intel Sandy Bridge & Ivy Bridge vs. Broadwell
  6. AMD FX-8320E Performance On Linux
Latest Linux News
  1. I Switched (Back) Over To Fedora As My Main OS & It's Going Great!
  2. Windows 10, PS4, C4 & Systemd News Kicked Off 2015
  3. Calamares 1.0 Distribution-Independent Installer Framework Released
  4. Librem 15 Linux Laptop Set To Close At Around $400k USD
  5. Virtual GEM To Increase Mesa's Software Rasterizer Performance
  6. Open Lunchbox: Yet Another Open-Source Laptop Attempt
  7. Wayland/Weston 1.7 Release Candidate
  8. Bugzilla 5.0 Is Coming Soon With New Features
  9. Linux Benchmarking... Even Faster & A Very Interesting February
  10. Does VirtualBox VM Have Much A Future Left?
Most Viewed News This Week
  1. PlayStation 4 System Compiler Support Landing In LLVM
  2. Does VirtualBox VM Have Much A Future Left?
  3. Linux "GHOST" Vulnerability Hits Glibc Systems
  4. LibreOffice 4.4 Is Coming Soon With New Features
  5. LLVM Adds Options To Do Fuzz Testing
  6. LibreOffice 4.4 Released With Better OOXML Support, UI Improvements
  7. Inkscape 0.91 Goes Through C++ Code Conversion, New Cairo Rendering, OpenMP Filters
  8. Broadwell Linux Ultrabook Running MUCH Cooler Than Haswell