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    plasmashell high CPU load

    Dear all,

    I am having a problem with plasmashell: whenever the notification icon is animated (like when moving a large file), plasmashell's CPU usage goes to 100%, and the whole desktop becomes very slow.

    I have googled a bit, and there are several bugs like this on the kde bug tracking, but all are marked as resolved.

    Am I the only one seeing this?

    It looks to me like a rather macroscopic defect for a public release, so I assume this must be happening only to a few users.
    Any hints on how to solve the issue (like disabling the animations in the notification icon) are welcome.

    Cheers,

    Andrea.

    #2
    I've been seeing the same too, for me it starts out fine but after a while plasmashell and Xorg hit 40% cpu between them.

    Comment


      #3
      Not a solution, but I noticed "Track file transfers and other jobs" in Notification Settings (right click Notifications in the System Tray). Maybe turning that off will help as a workaround.

      Comment


        #4
        Hi ronw,

        thanks for your reply. the thing is that if I turn that off, I don't have ANY progress indicator for file transfers anymore. Not even a notification saying "ok I'm done". The only way to know if a copy of a large file has finished is to periodically refresh the target folder in dolphin and compare original and copied sizes.

        Which is not really a workable solution

        Cheers,

        Andrea.

        Comment


          #5
          I am also facing the same problem.

          After using the system for a while, I am noticing that gradually the CPU temp is increasing and also the plasmashell process is also reaching 15% of CPU usage. My CPU temp is showing above 90 degrees celsius at times.

          I am now using Kubuntu backports and on 5.3. Also to note that I am using nVidia X.org Nouveau drivers.

          Is this because of display driver issue? Someone please help to at least find some workaround.
          Last edited by arindom; May 01, 2015, 06:45 AM.

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            #6
            I consider the "show progress only in the notification area" to be a weird solution in any case. Perhaps nicer (if very well done) but hard to get it right. I wish the target window for the file copy would just have a progress bar embedded in it.

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              #7
              Originally posted by xennex81 View Post
              I consider the "show progress only in the notification area" to be a weird solution in any case. Perhaps nicer (if very well done) but hard to get it right. I wish the target window for the file copy would just have a progress bar embedded in it.
              Yes, that would have been good.

              About the high CPU usage and high CPU temp, I further noticed that when there was no network, that means Wi-Fi is switched OFF, both the CPU usage and the temp comes down to a much lower value. CPU usage of Plasmashell shows about 6/7% and CPU temp hovers around 55-60 degress Celsius.
              Last edited by arindom; May 01, 2015, 06:45 AM.

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                #8
                It looks like, now the issue of high CPU usage for "plasmashell" and high CPU temp is not happening anymore for my system.

                I had the Network widget ON. I just turned it OFF and now both the issues seems to be resolved, at least in my case. Plasmashell is now using 0.8% of CPU at the normal level usage and also the CPU temp has reduced to 56 degrees Celsius.

                Comment


                  #9
                  arindom has it spot-on! That is definitely the issue. It was similar in Plasma 4 but not as bad as this. Kind of a showstopper in my book being such an "advancement" for KDE. I hope this is just growing pains of a new codebase, otherwise, it will really not just suck up resources and increase load but shorten the life of our machines. That kind of planned obsolescence is not a good plan when the beauty of Linux is the ability to stretch out the life of your machine. Save the planet, eh?

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