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 Linux Hardware Reviews
  1. NVIDIA GeForce GTX 980: The Best GPU For Linux Gamers
  2. ROCCAT LUA: A Linux-Friendly Gaming Mouse
  3. Cheetah Mounts: The Affordable Way To Put Your TV On The Wall
  4. Scythe Mugen MAX
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. Fedora Might Try A New Scheduling Strategy For Its Releases
  2. AMD's Catalyst Working On A GLSL Shader Cache
  3. OpenMP 4.0 Offloading Is Closer For GCC 5
  4. Wayland Presentation Extension Added To Weston
  5. Intel Skylake Support Rolls Out To Mesa's DRM
  6. VA-API's Libva 1.4.0 Brings VP8 Encoding Support
  7. Operating System U Fails To Live Up To Its Goals
  8. AMD Catalyst 14.9 Officially Released For Linux
  9. Nouveau Memory Re-Clocking Comes For More NVIDIA GPUs
  10. NVIDIA Suggests Explicit Synchronization For Nouveau
Latest Forum Discussions
  1. NVIDIA Alerts Nouveau: They're Starting To Sign/Validate GPU Firmware Images
  2. New AMD Catalyst drivers out today
  3. Updated and Optimized Ubuntu Free Graphics Drivers
  4. Take the Steam Survey results with a grain of salt. It is flawed.
  5. FSF Issues Statement On Shellshock Bash Vulnerability
  6. AMD Wants To Know What's Wrong With Catalyst
  7. New Group Calls For Boycotting Systemd
  8. Counter-Strike: Global Offensive NVIDIA/AMD Benchmarks On Linux