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A New Chapter for MagicMirror: The Community Takes the Lead
Read the statement by Michael Teeuw here.

Electron CPU usage

Scheduled Pinned Locked Moved Troubleshooting
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  • M Offline
    Mykle1 Project Sponsor Module Developer @loctruong96
    last edited by Oct 2, 2017, 1:20 AM

    @loctruong96 said in Electron CPU usage:

    I have also indicated a note in the install guide to have people aware of it.

    Very good! Thanks!

    Create a working config
    How to add modules

    1 Reply Last reply Reply Quote 0
    • M Offline
      Mr.Sponti
      last edited by Oct 2, 2017, 4:27 PM

      Hello, here are some details on my configuration and the steps I’ve made to downgrade from 2.1.1 to MM 2.1.0 & electron 1.4.15. First, I use the following PI and OS

      • Pi 3 Model B, 1024MB RAM

      • Raspbian Stretch

      pi@Infoboard:~ $ uname -a
      Linux Infoboard 4.9.41-v7+ #1023 SMP Tue Aug 8 16:00:15 BST 2017 armv7l GNU/Linux
      

      Downgrade MagicMirror from 2.1.1 to 2.1.0:
      -rename of my MagicMirror folder to MagicMirrorSAVE
      -download and unzip MM 2.1.0
      -rename dir MagicMirror-2.1.0 to MagicMirror
      -cd to MagicMirror
      -npm install electron@1.4.15 # I didn’t install electron as a global package
      -nano package.json
      –> change electron version under dependencies to electron 1.4.15

      {
        "name": "magicmirror",
        "version": "2.1.0",
        "description": "A modular interface for smart mirrors.",
        "main": "js/electron.js",
        "scripts": {
          "start": "electron js/electron.js"
        },
        "repository": {
          "type": "git",
       ...
       "dependencies": {
          "electron": "1.4.15",
          "express": "^4.14.0",
          "express-ipfilter": "latest",
          "feedme": "latest",
      ....
      

      now, install MagicMirror

      -npm install
      -copy your own modules from the MagicMirrorSAVE to the respective MM2.1.0 directory
      -install necessary node modules for your own modules
      done
      Check the installed version of electron

      pi@Infoboard:~ $ more MagicMirror/node_modules/electron/dist/version
      v1.4.15
      

      run MM with ‘npm start’ and monitor the CPU usage with ‘top’
      and the magic is there: 2 to 3 % CPU usage in case you are not running newsfeed or other modules with a lot of rendering stuff. If I include the newfeed modul CPU usage will increase up to 30%. So, I go without newsfeed!

      alt text

      I hope that help some or the other.

      M K 2 Replies Last reply Oct 2, 2017, 4:52 PM Reply Quote 3
      • M Offline
        Mykle1 Project Sponsor Module Developer @Mr.Sponti
        last edited by Oct 2, 2017, 4:52 PM

        @Mr.Sponti said in Electron CPU usage:

        I hope that help some or the other.

        Thank you for adding your results to this topic, and the steps you took to downgrade MM and Electron. I’m sure your post will help someone, as this topic has helped quite a few people.

        Did you downgrade because you were having the CPU usage issue? Can you tell me what your usage was before you downgraded? Thanks

        Create a working config
        How to add modules

        M 1 Reply Last reply Oct 2, 2017, 5:12 PM Reply Quote 0
        • M Offline
          Mr.Sponti @Mykle1
          last edited by Oct 2, 2017, 5:12 PM

          @Mykle1 Yes, I downgraded due to high CPU usage with MM2.1.1 & electron1.4.17. Top showed a usage between 100 and 200% and my own written moduls had a really bad performance.

          M 1 Reply Last reply Oct 2, 2017, 8:23 PM Reply Quote 1
          • M Offline
            Mykle1 Project Sponsor Module Developer @Mr.Sponti
            last edited by Oct 2, 2017, 8:23 PM

            @Mr.Sponti said in Electron CPU usage:

            Yes, I downgraded due to high CPU usage with MM2.1.1 & electron1.4.17. Top showed a usage between 100 and 200% and my own written moduls had a really bad performance.

            Ok, thank you. I’m glad that you’re seeing the benefit of this workaround. Let’s hope that it gets addressed and corrected sometime in the future.

            Create a working config
            How to add modules

            1 Reply Last reply Reply Quote 1
            • K Offline
              Kugelfang @Mr.Sponti
              last edited by Kugelfang Oct 15, 2017, 9:56 PM Oct 15, 2017, 9:44 PM

              @Mr.Sponti

              I tried your precise instructions but my system still installed electron 1.7.9

              i started with a fresh jessy install on my raspberry pi 3. i then installed the latest version of node.js and copied the MM 2.10 folder to my pi. I then modified the dependancy for electron to 1.4.15 in the package.json and run the installation. However i still ended up with electron 1.7.9 which runns really bad…

              it would be great if someone could help me

              M 1 Reply Last reply Oct 15, 2017, 10:42 PM Reply Quote 0
              • M Offline
                Mykle1 Project Sponsor Module Developer @Kugelfang
                last edited by Oct 15, 2017, 10:42 PM

                @Kugelfang said in Electron CPU usage:

                it would be great if someone could help me

                npm install electron@1.4.15

                Create a working config
                How to add modules

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                • M Offline
                  Mr.Sponti
                  last edited by Oct 16, 2017, 6:15 AM

                  @Kugelfang said in Electron CPU usage:

                  I tried your precise instructions but my system still installed electron 1.7.9

                  cd $HOME/MagicMirror
                  npm uninstall -g electron
                  npm uninstall electron
                  npm install electron@1.4.15 
                  
                  1 Reply Last reply Reply Quote 0
                  • K Offline
                    Kugelfang
                    last edited by Kugelfang Oct 16, 2017, 6:22 AM Oct 16, 2017, 6:21 AM

                    @Mykle1: that seems to have worked. I just entered the MagicMirror folder and ran the command! thanks a lot! the animations are a lot better now!

                    However, now i have another problem: it seems that the weather forecast module does not work. All other modules work as expected but the forecast does not show up. I double checked all the settings in the config.js and they seem ok.

                    @Mr-Sponti: thanks for the input but it seems that simply installing 1.4.15 over the 1.7.9 seems to have already working

                    Could it be that the weatherforecast plugin comming with MM 2.10 is the problem?

                    M 1 Reply Last reply Oct 16, 2017, 11:30 AM Reply Quote 0
                    • M Offline
                      Mykle1 Project Sponsor Module Developer @Kugelfang
                      last edited by Oct 16, 2017, 11:30 AM

                      @Kugelfang said in Electron CPU usage:

                      Could it be that the weatherforecast plugin comming with MM 2.10 is the problem?

                      I don’t think so. It’s more of an API key issue. The newer API keys are being rejected by the API source. You can search this forum. I don’t know if there is a fix. Or, try another weather module in the meantime

                      Create a working config
                      How to add modules

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