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Upgrades X Linux

Kernel 2.6.31 To Speed Up Linux Desktop 360

Dan Jones writes "As the Linux community looks forward to another kernel release, the kernel hackers have been working on improving the memory management so that the X desktop responsiveness is doubled under high memory pressure. The result is an improved desktop experience. Benchmarks on memory-tight desktops show clock time and major faults reduced by 50 per cent, and pswpin numbers (memory reads from disk) are reduced to about one-third. Another improvement coming with 2.6.31 is kernel mode-setting support for ATI Radeon graphics cards, enabling faster user switching and a more seamless startup experience. Peripheral developments that will also improve the Linux desktop experience include support for the new USB 3.0 specification and a new Firewire stack. Even minor Linux releases have heaps of new features these days!"
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Kernel 2.6.31 To Speed Up Linux Desktop

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  • by Aggrajag ( 716041 ) on Saturday September 05, 2009 @01:29PM (#29324285)
  • by pjt33 ( 739471 ) on Saturday September 05, 2009 @02:29PM (#29324723)

    linux gurus who can rebuild their kernel six times a day

    How did they manage that before support for 4096 cores?

  • by Rebar ( 110559 ) on Saturday September 05, 2009 @02:30PM (#29324731)

    The Break-In process of the new Linux kernel takes time. There is a significant change in Video Performance as the kernel break in. There is still a perception that Linux kernels have a short break in time or worse yet, don't require break in. Some hackers used a second computer to break in the Linux kernel, and transfer the image to their primary computer. This method will not appreciably reduce the break in time required for the kernel. Linux kernel Break-In must be done in the position where you plan to use it.

    The System Performance Stages of the kernel are as follows:

    * First Stage of Break-In = The system will feel very open, clear and with good detail resolution and dynamics. The greens and lower reds will have elevated intensity levels. The lower output of the blue and green information is due to reduced bandwidth performance at this Stage. In some systems, especially with aluminum or titanium heatsinks, the greens and blues may appear edgy or even fatiguing. The visual stage will appear OK with some lack of Focus. It will take from 5 to 15 hours of break-in for the kernel to reach the Second Stage of Break-In.

    * Second Stage of Break-In = The blues and greens will appear less elevated and up front as the monitor intensity level increases. This is followed by the reds starting fill in. The lack of Focus may become more noticeable and the visual stage will start to widen and have more depth. It will take an additional 15 to 35 hours to reach the Third Stage of Break-In.

    * Third Stage of Break-In = The system response time will completely flatten out. The presentation will become very clean and less up front. The lack of Focus is disappearing and the imaging will improve as will the low level detail resolution. The Green comes in and it is very tight and you will see lower Red frequencies than your other kernel provided. In effect the visual signature of the kernel will seem to disappear and the X-window presentation will be very real and non-fatiguing. It will take an additional 30 to 50 hours to reach the Final Stage of Kernel Performance.

    * Fourth and Final Stage of Kernel Performance = The Visual Stage will be wider than your monitor with excellent depth, height and precise localization of individual icons on the desktop. The hue of the icons will be very accurate over the entire desktop. Symbolic links have excellent referencing ability. The metallic sound of your hard drive is very lifelike. Rhythm, Pace and Dynamics are effortless. Many users find they are now viewing the X-window system at lower Light Levels due to the effortless presentation. You will start to see subtle visual cues like the programmer turning his head while he is programming. You will find you are viewing the Window Manager and forgetting about evaluating your system.

  • by wonkavader ( 605434 ) on Saturday September 05, 2009 @02:51PM (#29324969)
    From the article:

    The advent of Windows 7 in October may drive Linux's desktop market share down even futher.
    It's not all doom and gloom for the penguin, however...

    Thank goodness. I was so worried and depressed.

  • by tmmagee ( 1475877 ) on Saturday September 05, 2009 @04:04PM (#29325685)
    I for one am still waiting patiently for Berlin (now called Fresco) [] to replace X. It should be amazing when it is finally finished!
  • by Anonymous Coward on Saturday September 05, 2009 @04:09PM (#29325741)

    Did you reply to the wrong message?

  • by zdzichu ( 100333 ) <zdzichu@irc . p l> on Saturday September 05, 2009 @04:19PM (#29325863) Homepage Journal

    Fedora developer read it for sure:

    * Fri Aug 07 2009 Kristian HÃgsberg - 2.8.0-4
    - Add dri2-page-flip.patch to enable full screen pageflipping.
        Fixes XKCD #619.

    xorg-x11-drv-intel-2.8.0-4.fc12 []

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