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

Tweaking KDE's KWin For Linux Gaming Performance

Michael Larabel

Published on 19 April 2012
Written by Michael Larabel
Page 1 of 5 - 19 Comments

After looking recently at the impact on performance and power consumption of various Linux desktop environments running under Ubuntu 12.04 (Unity, Unity 2D, GNOME Shell, KDE, Xfce, LXDE, and Openbox), there were requests by many Phoronix readers to look at the impact of KDE on 3D gaming. KDE's KWin compositing window manager offers several options that can be easily changed that have a direct result on the Linux system's performance for full-screen OpenGL games.

To compliment the earlier Linux desktop testing, in this article is just running the KDE 4.8 desktop in Ubuntu 12.04 with various KWin window manager options. Multiple GPUs/drivers were tested.

Via the KDE system settings, the benchmarks were done when KWin was doing its compositing via OpenGL (the default), XRender compositing, and then when "Suspend desktop effects for fullscreen windows" was enabled. This option is not enabled by default since it can cause tearing/flickering for some on-screen overlays and other problems. The desktop effects during full-screen windows can also be disabled manually using "Alt + Shift + F12" or by a window-specific rule for the window that can be set by the application/game.

For this KDE effects testing an Intel Core i5 "Sandy Bridge" notebook was used as well as a workstation with ATI Radeon HD 4870 graphics on the open-source Radeon Gallium3D driver and the closed-source AMD Catalyst Linux driver. For the Radeon Gallium3D configuration, swap buffers wait was disabled during testing.

A variety of games was run automatically under the KDE desktop on Ubuntu 12.04 LTS x86_64 for these two systems via the Phoronix Test Suite.

<< Previous Page
1
Latest Linux Hardware Reviews
  1. Even With Re-Clocking, Nouveau Remains Behind NVIDIA's Proprietary Linux Driver
  2. The Power Consumption & Efficiency Of Open-Source GPU Drivers
  3. AMD R600g/RadeonSI Performance On Linux 3.16 With Mesa 10.3-devel
  4. Intel Pentium G3258 On Linux
Latest Linux Articles
  1. AMD Catalyst 14.6 Does Slightly Better With APITest OpenGL Tests
  2. Updated Source Engine Benchmarks On The Latest AMD/NVIDIA Linux Drivers
  3. Nouveau vs. Radeon vs. Intel Tests On Linux 3.16, Mesa 10.3-devel
  4. KVM Benchmarks On Ubuntu 14.10
Latest Linux News
  1. Builder: A New Development IDE Being Built For GNOME
  2. GDB 7.8 Betters Python Scripting, Adds Guile Support
  3. GNOME's GTK+ Is Still Striving For A Scene Graph, Canvas API
  4. Unreal Tournament Looks Great For Team Deathmatch
  5. LibreOffice 4.3 Released With Many Exciting Changes
  6. GNOME/GTK On Wayland Gains Focus At GUADEC
  7. GNOME Stakeholders Take Issue With Groupon Over their Gnome
  8. GStreamer VA-API Plug-In Update Adds New Features
  9. Qt 5.4 Going Into Feature Freeze Next Week With Exciting Changes
  10. OpenSUSE Factory Turns Into Rolling Release Distribution
Latest Forum Discussions
  1. Open-source drivers on ATI R7 260X
  2. Grand Theft Auto Running On Direct3D Natively On Linux Shows Gallium3D Potential
  3. AMD Athlon 5350 APU On Linux
  4. Debian + radeonsi
  5. Linus Torvalds On GCC 4.9: Pure & Utter Crap
  6. Updated and Optimized Ubuntu Free Graphics Drivers
  7. List of Linux friendly Kickstarter projects
  8. Porting Mesa to the Playstation 2