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

Performance Optimizations For KDE's KWin 4.6

KDE

Published on 01 November 2010 09:37 AM EDT
Written by Michael Larabel in KDE
15 Comments

While some developers and other KDE contributors are busy voicing their opinions over merging the KDE libraries into the upstream Qt, which would lead to either KDE 5.0 or KDE 6.0 depending upon how it's implemented and if it's actually carried out, KDE Software Compilation 4.6 is still on the way and should officially arrive by the end of January. Martin Graesslin, who works on much of the KWin compositing manager and previously said KDE SC 4.7 may support OpenGL 3.x for compositing, has written about some of the KWin changes for KDE 4.6.

KWin in KDE SC 4.6 is not going to change anything radical, but there are some scripting interface changes and some performance improvements within the compositing engine. With KWin 4.6, texture and geometry data is now always cache and the GLX_EXT_texture_from_pixmap extension is utilized rather than QPixmap/Qimage.

According to Martin, there are great improvements for effects that transform a single window, since these KWin effects no longer cause the entire window to be repainted. There's also an optimization for the Lanczos filter and other improvements.

Martin talks about KWin 4.6 in this blog post.

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. Intel Xeon E5-1680 v3 & E5-2687W v3 Compared To The Core i7 5960X On Linux
  2. Intel 120GB 530 Series SSD Linux Performance
  3. Btrfs/EXT4/XFS/F2FS RAID 0/1/5/6/10 Linux Benchmarks On Four SSDs
  4. AMD's Windows Catalyst Driver Remains Largely Faster Than Linux Drivers
Latest Linux Articles
  1. NVIDIA vs. Nouveau Drivers With Linux 3.18 + Mesa 10.4-devel
  2. Is The Open-Source NVIDIA Driver Fast Enough For Steam On Linux Gaming?
  3. Linux 3.18 File-System Performance Minimally Changed But Possible Regressions
  4. AMD Radeon Gallium3D Is Catching Up & Sometimes Beating Catalyst On Linux
Latest Linux News
  1. Linux 3.18 Kernel: Not Much Change With Intel Haswell Performance
  2. More File-System Tests Of The Linux 3.18 Kernel
  3. Using NVIDIA's NVENC On Linux With FFmpeg
  4. There's Talk Again About An "Open To The Core" Ubuntu Laptop
  5. PowerVR SGX Driver Code Gets Leaked
  6. V2 Of KDBUS Published For Linux Kernel Review
  7. VirtualBox 4.3.20 Arrives, Still No Sign Of VirtualBox 4.4
  8. Scientific Linux 6.6 vs. Scientific Linux 7.0 Benchmarks
  9. Qualcomm Looks To Get Into The ARM Server Business
  10. HHVM 3.4 Adds New Features, Support
Latest Forum Discussions
  1. Roadmap to Catalyst 14.10 ?
  2. Updated and Optimized Ubuntu Free Graphics Drivers
  3. Cant get working Kaveri APU - A10-7850k
  4. Debian Developer Resigns From The Systemd Maintainership Team
  5. Script for Fan Speed Control
  6. Debian Init System Coupling Vote Results
  7. The Slides Announcing The New "AMDGPU" Kernel Driver
  8. Ubuntu Developers Still Thinking What To Do About Adobe Flash Support