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. 13-Way Low-End GPU Comparison With AMD's AM1 Athlon
  2. ASUS AM1I-A: A Mini-ITX Board For Socketed Kabini APUs
  3. Mini-Box M350: A Simple, Affordable Mini-ITX Case
  4. Overclocking The AMD AM1 Athlon & Sempron APUs
Latest Linux Articles
  1. How Much Video RAM Is Needed For Catalyst R3 Graphics?
  2. Ubuntu 12.04 LTS vs. 14.04 LTS Cloud Benchmarks
  3. Ubuntu 12.04.4 vs. 13.10 vs. 14.04 LTS Desktop Benchmarks
  4. AMD OpenCL Performance With AM1 Kabini APUs
Latest Linux News
  1. ReactOS Working On A Community Windows OS
  2. Borderlands Is Being Considered For Linux
  3. Mesa 10.0 & 10.1 Stable Get Updated
  4. Getting Hit By The Variable Performance Of The Public Cloud
  5. Git 2.0 Test Releases Begin With Many Changes
  6. Wine 1.7.17 Works On Its Task Scheduler, C Run-Time
  7. The Improv ARM Board Still Isn't Shipping; Riding A Dead Horse?
  8. Debian To Maintain 6.0 Squeeze As An LTS Release
  9. Wasteland 2 Is Finally Released For Linux Gamers
  10. FreeBSD Advances For ARM, Bhyve, Clang
  11. Ubuntu 14.04 LTS "Trusty Tahr" Officially Released
  12. Ubuntu 12.04 LTS vs. 14.04 LTS Server Benchmarks
Latest Forum Discussions
  1. Updated and Optimized Ubuntu Free Graphics Drivers
  2. Catalyst 14.3 Beta
  3. Suggestions about how to make a Radeon HD 7790 work decently?
  4. The GNOME Foundation Is Running Short On Money
  5. Radeon 8000M problematic on Linux?
  6. Linux Kernel Developers Fed Up With Ridiculous Bugs In Systemd
  7. After Jack Keane, RuseSoft will briing Ankh 3 to Linux through Desura
  8. Suspected PHP Proxy Issue