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

Fixed: The Linux Desktop Responsiveness Problem?

Linux Kernel

Published on 04 August 2010 09:21 AM EDT
Written by Michael Larabel in Linux Kernel
60 Comments

One of the problems commonly talked about in our forums and elsewhere is the poor responsiveness of the Linux desktop when dealing with significant disk activity on systems where there is insufficient RAM or the disks are slow. The GUI basically drops to its knees when there is too much disk activity, which is far from being ideal. For many the problem has just been present for a year or two, but those experiencing these horrible responsiveness problems where it may take many seconds for a menu to appear when clicking on it or a half-minute to do a VT switch, there soon may be a fix.

Wu Fengguang and KOSAKI Motohiro have published patches this week that they believe will address some of these responsiveness issues, for which they call the "system goes unresponsive under memory pressure and lots of dirty / writeback pages" bug. Andreas Mohr, one of the users that has reported this problem to the LKML and tested the two patches that are applied against the kernel's vmscan reported success. Andreas' problem was the system becoming fully unresponsive (and switching to a VT took 20+ seconds) when making an EXT4 file-system when a solid-state drive was connected via USB 1.1. On his system when writing 300M from the /dev/zero file the problem was even worse.

The patches from Fengguang and Motohiro can be found in this Linux kernel mailing list thread. With the Linux 2.6.36 kernel merge window about to be opened, let's hope these patches work their way in there during this next cycle, but for those planning to run the stock kernel on Ubuntu 10.10 and other Q3'2010 distributions, it is already too late unless these small patches end up being back-ported.

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. AMD R600g/RadeonSI Performance On Linux 3.16 With Mesa 10.3-devel
  2. Intel Pentium G3258 On Linux
  3. SilverStone Precision PS10
  4. ASRock Z97 Extreme6
Latest Linux Articles
  1. KVM Benchmarks On Ubuntu 14.10
  2. X.Org Server 1.16 Officially Released With Terrific Features
  3. Ubuntu With Linux 3.16 Smashes OS X 10.9.4 On The MacBook Air
  4. Preview: Benchmarking CentOS 7.0 & Scientific Linux 7.0
Latest Linux News
  1. Linux Developers Jump Quickly On ACPI 5.1, Helps Out ARM
  2. Pkg 1.3.0 Released To Improve Package Management On FreeBSD
  3. GOG.com Officially Starts Rolling Out Linux Games
  4. Fedora 21 Has Been Delayed By Three Weeks
  5. Mono Begins To Focus On Performance, Assembles A Team
  6. Oracle Linux 7 Released Today As Its RHEL7 Clone
  7. Unigine Develops City Traffic System, A Driving Simulator
  8. Intel 3.0 X.Org Driver Still Baking, New Development Release
  9. Eric Anholt Makes Progress With Broadcom VC4 Graphics Driver
  10. Intel Is Getting Very Close To OpenGL 4.0/4.1/4.2 Mesa Support
Latest Forum Discussions
  1. Updated and Optimized Ubuntu Free Graphics Drivers
  2. Radeon related kernel bug??
  3. how the US intellegentia operates:
  4. AMD Publishes Open-Source Linux HSA Kernel Driver
  5. Next-Gen OpenGL To Be Announced Next Month
  6. Open-Source Radeon Performance Boosted By Linux 3.16
  7. Remote gui not accessible in Phoronix Test Suite 5.2
  8. AMD "Hawaii" Open-Source GPU Acceleration Still Not Working Right