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Thread: Plasma & X 20~60% of CPU in 11.1, pls help understand and f

  1. #1
    rnsc NNTP User

    Default Plasma & X 20~60% of CPU in 11.1, pls help understand and f


    I upgraded from 10.2. My 800 MHz machine was not a speed deamon but
    responded promptly.

    With 11.1, it is sluggish. With "top" I see one or two "Plasma" at
    10~20% and an X at 10~15% of the CPU when I am doing NOTHING.

    I assume this is the result of some new fanciness?

    Is there a menu of "fancy" features I can turn off?

    Any other trees I should be barking up?

    Thanks.


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  2. #2
    blacksands NNTP User

    Default Re: Plasma & X 20~60% of CPU in 11.1, pls help understand and f


    Is this: 'X process 100% CPU usage at 11.1 KDE4 - openSUSE Forums'
    (http://tinyurl.com/ddyqy2) the same thing that is happening to you?
    Because I think its being worked on. Otherwise that might really be too
    slow of a comp to be running SUSE. Maybe something with less of a
    footprint like ****Small would be better.


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  3. #3
    google01103 NNTP User

    Default Re: Plasma & X 20~60% of CPU in 11.1, pls help understand and f

    rnsc wrote:

    >
    > I upgraded from 10.2. My 800 MHz machine was not a speed deamon but
    > responded promptly.
    >
    > With 11.1, it is sluggish. With "top" I see one or two "Plasma" at
    > 10~20% and an X at 10~15% of the CPU when I am doing NOTHING.
    >
    > I assume this is the result of some new fanciness?
    >
    > Is there a menu of "fancy" features I can turn off?
    >
    > Any other trees I should be barking up?
    >
    > Thanks.
    >
    >

    I think you should make sure that
    1) desktop effects are unchecked in configure desktop -> desktop
    effects -> general
    2) remove all plasmoids that do system or network monitoring and use
    gKrellm instead
    --
    Suse 11.1 x64, Kde 4.2beta, Opera 10.x weekly


  4. #4
    rnsc NNTP User

    Default Re: Plasma & X 20~60% of CPU in 11.1, pls help understand and f


    No, it is not 100%... With a top refreshing every 3 seconds, it jumps
    around between probably 15 or 20 and 70 or 80%, usually between 25 and
    60. This is the sum of the X and the one or two plasma's. Thanks for
    the guess and information.

    Regarding my hardware, I hope not. I really like Suse and KDE and it
    would be a great loss if I had to go to something else.

    The machine is entirely acceptable with OpenSuse 10.2. It is not
    zippy, but I am never annoyed. I would agree with Aaron Seigo in his
    block portion quoted below) at: 'aseigo: On KDE4 Performance'
    (http://aseigo.blogspot.com/2008/09/o...rformance.html)

    There should not be fanciness that I cannot turn off. I have not been
    able to find anything to turn off, I hope it is there. (1) When I am
    not doing anything, when nothing is running, when nothing is happening,
    the GUI should not consume 800,000,000 +/-250% instrunctions per second.
    (2) I should be able to disable fanciness that runs when I AM doing
    something.

    Quote from URL given above:

    "There will always be some things, like desktop effects used in KWin,
    Plasma and KRunner, that simply require a decent video card. However,
    all of these programs should be runnable without those effects and
    retain an acceptable user experience even on older (within reason; e.g.
    not 15 years old hardware. Good news is that they do, given decently
    supported hardware."

    "It is not acceptable if KDE 4 feels slower than KDE 3, and it is not
    acceptable if KDE 4 requires brand new hardware. At the same time, if
    the drivers for older hardware are simply not up to the task and those
    drivers aren't updated ... there's not much we can do about it and that
    hardware, which would otherwise be capable of better things, shouldn't
    be part of our target. It's also absolutely acceptable if certain
    features only work if the hardware can support them; this is mostly
    applicable to features reliant on more advanced graphics techniques."


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  5. #5
    rnsc NNTP User

    Default Re: Plasma & X 20~60% of CPU in 11.1, pls help understand and f


    This is the kind of stuff I was looking for!

    Regarding:
    I think you should make sure that
    1) desktop effects are unchecked in configure desktop -> desktop
    effects -> general

    "Compositing is not supported on your system". Everything is grayed
    out, but many are checked. I assume that the check boxes show the
    defaults, not the current, and that they are not operational.

    2) remove all plasmoids that do system or network monitoring and use
    gKrellm instead

    I don't understand. I come from KDE3.x. I think I know that plasmoids
    are things that put stuff on the "plasma dashboard", which is empty.
    Where would I find these "plasmoids" and how would I remove them?

    What is gkrellm, where would I find it, what does it do for me, do I
    need it?

    Thank you.


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  6. #6
    rnsc NNTP User

    Default Re: Plasma & X 20~60% of CPU in 11.1, pls help understand and f


    What is plasma DOING when I am not doing anything? How can I track this
    down and stop it?


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  7. #7
    rnsc NNTP User

    Default Re: Plasma & X 20~60% of CPU in 11.1, pls help understand and f


    I switched to KDE 3.5, and actually, things are "zippy". It works
    great. I am very happy.

    I realize this is ground that has probably been tread over and over,
    but I am very disappointed and concerned with KDE4.

    (1) Are the performance issues discussed in this thread. 50% +/- of
    the CPU when NOTHING is happening is crazy.

    (2) Is the apparent attitude of the KDE team. Saying "Gee, its young,
    it will get better" may be true, but it was irresponsible to put out a
    4.0, much less a 4.1 until it was the equal of 3.5. You want the world
    to shift from Microsoft to Linux/KDE? Then respect the fact that they
    need a working system, and don't put the world in a serious regression
    for a couple years while you catch up on your new architecture and
    paradigm.

    I DO applaud that KDE is trying to make really innovative,
    groundbreaking, true advances in how we interact with computers, but it
    *does* have to work all along the way!

    (3) I don't see the need for nautalus, I did not see Konqueror as
    complicated, and nautalus is a regression. The ability to split windows
    and have various directories open was *THE MAIN* reason I liked KDE over
    anything else, although there are probably others (I have not looked
    hard because the window splitting is so fundamentally useful).

    I think I read that Konqueror has become a nightmare inside. If it
    needs to be architected and implemented, fine, do that, but don't throw
    the paradigm out!

    (4) This one I am not sure of... I seem to see a trend toward "single
    clicking" to open. Even going to multiple keys. replacing s simple
    finger wiggle with having to move your entire arm, locate it accurately,
    push a key while you click, then put it back and align it is not more
    efficient. Fingers are much better at fine motor control than shoulders
    and arms, not to mention faster. The single click to select, double to
    open is one of the things done right.

    (5) Please don't be offended, but hear my message... It appears that
    the KDE team is obsessed with nifty bells and whistles and eye candy and
    do-dads that just complicate the world and make it slower. And they
    have developed their own language that they talk so that only they can
    understand each other. If you want to take over the world, the world
    primarily needs to get something done and use this tool - they do not
    want to spend their life learning about it and playing with it. Fine
    for those who do, but most people have a task they want to get done so
    they can go play with their children, or climb a mountain, or live their
    life! Work on your new, simple, intuitive paradigm that makes it EASY!

    Well, if any KDE people are listening, thanks, and thanks for KDE...3.x
    at least!


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