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Ubuntu 18.04: Why is Java CPU usage so high?


Unable to run Java, IcedTea on Ubuntu 12.04 LTS in Chrome or FirefoxMinecraft and java troublesCPU usage very highHigh usage of Intel CPU! [18.04 LTS]ubuntu 18.04 high cpu/fan crazy - basic usageUbuntu 18.04 gnome-shell high CPU usageUbuntu 18.04 DisplayLink high cpu usageJava programs don't repaint GUI after Ubuntu updateWhy am I not using the version of java that I choose, and what to do?






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  • Ubuntu version: Ubuntu 18.04.2 LTS

  • Java version: openjdk version "1.8.0_212"

  • Intellij version: 2019.1.2 Community Edition

enter image description here



Whenever I open Intellij, with no background processes running, I can see Java's CPU utilization goes up to ~500% and beyond. I have performed a apt update and apt upgrade. Is anyone else experiencing this issue? Any help would be appreciated.










share|improve this question































    2


















    • Ubuntu version: Ubuntu 18.04.2 LTS

    • Java version: openjdk version "1.8.0_212"

    • Intellij version: 2019.1.2 Community Edition

    enter image description here



    Whenever I open Intellij, with no background processes running, I can see Java's CPU utilization goes up to ~500% and beyond. I have performed a apt update and apt upgrade. Is anyone else experiencing this issue? Any help would be appreciated.










    share|improve this question



























      2













      2









      2


      1






      • Ubuntu version: Ubuntu 18.04.2 LTS

      • Java version: openjdk version "1.8.0_212"

      • Intellij version: 2019.1.2 Community Edition

      enter image description here



      Whenever I open Intellij, with no background processes running, I can see Java's CPU utilization goes up to ~500% and beyond. I have performed a apt update and apt upgrade. Is anyone else experiencing this issue? Any help would be appreciated.










      share|improve this question














      • Ubuntu version: Ubuntu 18.04.2 LTS

      • Java version: openjdk version "1.8.0_212"

      • Intellij version: 2019.1.2 Community Edition

      enter image description here



      Whenever I open Intellij, with no background processes running, I can see Java's CPU utilization goes up to ~500% and beyond. I have performed a apt update and apt upgrade. Is anyone else experiencing this issue? Any help would be appreciated.







      18.04 java cpu openjdk intellij






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked May 20 at 19:05









      Drakken SaerDrakken Saer

      1214 bronze badges




      1214 bronze badges























          2 Answers
          2






          active

          oldest

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          0



















          I have the exact same issue - peaking at about 700%



          Ubuntu 18.04.3 LTS



          • openjdk version "1.8.0_222"

          • OpenJDK Runtime Environment (build 1.8.0_222-8u222-b10-1ubuntu1~18.04.1-b10)
            OpenJDK 64-Bit Server VM (build 25.222-b10, mixed mode)

          Here it was just the Atlassian BitBucket server.



          (and thanks to the admins for deleting my initial answer/comment - this really encourages people to contribute - well done)



          Installing Sophos Antivirus did the trick.



          Only annoying thing is it hasn't got a GUI interface on Linux, so it's a science figuring out which virus had infected my system






          share|improve this answer




























          • After grep'ping in the log directory I still have no clue ... ah well, problem solved - reason unknown

            – Torben Vesterager
            Sep 6 at 8:29


















          0



















          I was wrong - Sophos Antivirus did not fix the issue.



          When I turn on my computer in the morning, the Atlassian Bitbucket service java process will take around 700% CPU time - one restart and it's back to less than 3%



          Restarting can fix a Linux? Almost reminds me of Windows.






          share|improve this answer



























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            2 Answers
            2






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            active

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            active

            oldest

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            0



















            I have the exact same issue - peaking at about 700%



            Ubuntu 18.04.3 LTS



            • openjdk version "1.8.0_222"

            • OpenJDK Runtime Environment (build 1.8.0_222-8u222-b10-1ubuntu1~18.04.1-b10)
              OpenJDK 64-Bit Server VM (build 25.222-b10, mixed mode)

            Here it was just the Atlassian BitBucket server.



            (and thanks to the admins for deleting my initial answer/comment - this really encourages people to contribute - well done)



            Installing Sophos Antivirus did the trick.



            Only annoying thing is it hasn't got a GUI interface on Linux, so it's a science figuring out which virus had infected my system






            share|improve this answer




























            • After grep'ping in the log directory I still have no clue ... ah well, problem solved - reason unknown

              – Torben Vesterager
              Sep 6 at 8:29















            0



















            I have the exact same issue - peaking at about 700%



            Ubuntu 18.04.3 LTS



            • openjdk version "1.8.0_222"

            • OpenJDK Runtime Environment (build 1.8.0_222-8u222-b10-1ubuntu1~18.04.1-b10)
              OpenJDK 64-Bit Server VM (build 25.222-b10, mixed mode)

            Here it was just the Atlassian BitBucket server.



            (and thanks to the admins for deleting my initial answer/comment - this really encourages people to contribute - well done)



            Installing Sophos Antivirus did the trick.



            Only annoying thing is it hasn't got a GUI interface on Linux, so it's a science figuring out which virus had infected my system






            share|improve this answer




























            • After grep'ping in the log directory I still have no clue ... ah well, problem solved - reason unknown

              – Torben Vesterager
              Sep 6 at 8:29













            0















            0











            0









            I have the exact same issue - peaking at about 700%



            Ubuntu 18.04.3 LTS



            • openjdk version "1.8.0_222"

            • OpenJDK Runtime Environment (build 1.8.0_222-8u222-b10-1ubuntu1~18.04.1-b10)
              OpenJDK 64-Bit Server VM (build 25.222-b10, mixed mode)

            Here it was just the Atlassian BitBucket server.



            (and thanks to the admins for deleting my initial answer/comment - this really encourages people to contribute - well done)



            Installing Sophos Antivirus did the trick.



            Only annoying thing is it hasn't got a GUI interface on Linux, so it's a science figuring out which virus had infected my system






            share|improve this answer
















            I have the exact same issue - peaking at about 700%



            Ubuntu 18.04.3 LTS



            • openjdk version "1.8.0_222"

            • OpenJDK Runtime Environment (build 1.8.0_222-8u222-b10-1ubuntu1~18.04.1-b10)
              OpenJDK 64-Bit Server VM (build 25.222-b10, mixed mode)

            Here it was just the Atlassian BitBucket server.



            (and thanks to the admins for deleting my initial answer/comment - this really encourages people to contribute - well done)



            Installing Sophos Antivirus did the trick.



            Only annoying thing is it hasn't got a GUI interface on Linux, so it's a science figuring out which virus had infected my system







            share|improve this answer















            share|improve this answer




            share|improve this answer








            edited Sep 12 at 5:26

























            answered Sep 6 at 8:09









            Torben VesteragerTorben Vesterager

            1013 bronze badges




            1013 bronze badges















            • After grep'ping in the log directory I still have no clue ... ah well, problem solved - reason unknown

              – Torben Vesterager
              Sep 6 at 8:29

















            • After grep'ping in the log directory I still have no clue ... ah well, problem solved - reason unknown

              – Torben Vesterager
              Sep 6 at 8:29
















            After grep'ping in the log directory I still have no clue ... ah well, problem solved - reason unknown

            – Torben Vesterager
            Sep 6 at 8:29





            After grep'ping in the log directory I still have no clue ... ah well, problem solved - reason unknown

            – Torben Vesterager
            Sep 6 at 8:29













            0



















            I was wrong - Sophos Antivirus did not fix the issue.



            When I turn on my computer in the morning, the Atlassian Bitbucket service java process will take around 700% CPU time - one restart and it's back to less than 3%



            Restarting can fix a Linux? Almost reminds me of Windows.






            share|improve this answer






























              0



















              I was wrong - Sophos Antivirus did not fix the issue.



              When I turn on my computer in the morning, the Atlassian Bitbucket service java process will take around 700% CPU time - one restart and it's back to less than 3%



              Restarting can fix a Linux? Almost reminds me of Windows.






              share|improve this answer




























                0















                0











                0









                I was wrong - Sophos Antivirus did not fix the issue.



                When I turn on my computer in the morning, the Atlassian Bitbucket service java process will take around 700% CPU time - one restart and it's back to less than 3%



                Restarting can fix a Linux? Almost reminds me of Windows.






                share|improve this answer














                I was wrong - Sophos Antivirus did not fix the issue.



                When I turn on my computer in the morning, the Atlassian Bitbucket service java process will take around 700% CPU time - one restart and it's back to less than 3%



                Restarting can fix a Linux? Almost reminds me of Windows.







                share|improve this answer













                share|improve this answer




                share|improve this answer










                answered Sep 12 at 5:31









                Torben VesteragerTorben Vesterager

                1013 bronze badges




                1013 bronze badges































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