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. Btrfs On 4 x Intel SSDs In RAID 0/1/5/6/10
  2. AMD Radeon R9 290 On Ubuntu 14.10: RadeonSI Gallium3D vs. Catalyst
  3. MSI X99S SLI PLUS On Linux
  4. NVIDIA GeForce GTX 970 Offers Great Linux Performance
Latest Linux Articles
  1. Windows 8.1 vs. Ubuntu 14.10 With Intel HD Graphics
  2. 6-Way Ubuntu 14.10 Radeon Gallium3D vs. Catalyst Driver Comparison
  3. NVIDIA vs. Nouveau Drivers On Ubuntu 14.10
  4. Ubuntu 14.10 Offers AMD Radeon Driver Performance Improvements
Latest Linux News
  1. Has The Sky Fallen? Qualcomm Contributes To Freedreno's DRM/KMS Driver
  2. Manjaro Works To Make Calamares A Distribution-Independent Installer
  3. DisplayLink USB 3.0 Support Sounds Like A Mess
  4. PulseAudio Gains A Native Bluetooth Headset Backend
  5. X.Org Foundation Decides On Its Women Outreach Project
  6. GTK+ 3.16's New GtkGLArea Widget Gets Improved
  7. X.Org Server 1.17 ABI Bumped
  8. Fedora 21 Beta To Be Released Next Week
  9. Go 1.4 Beta Release Brings Big Runtime Changes
  10. SIMD For JavaScript Continues Coming Along
Latest Forum Discussions
  1. Closed source to opensource
  2. How to get rid of Linux
  3. Is foolish currently develop in machine code, hexadecimal and assembly?
  4. Reducing The CPU Usage In Mesa To Improve Performance
  5. Help diagnosing problems with a Readon HD 4670 on Mesa 10.3.2-1
  6. Advertisements On Phoronix
  7. nv and xorg.conf under Debian PPC
  8. Looking for a Open-Source AMD experienced Linux mentor