Judging by your screenshot (attached) it appears the CPU is being eaten by sha26sum, possibly as a result of 'fcheck'.
** Attachment added: "Capture d%u2019écran de 2018-07-31 08-50-20.png" https://bugs.launchpad.net/ubuntu/+bug/1784557/+attachment/5169918/+files/Capture%20d%25u2019%C3%A9cran%20de%202018-07-31%2008-50-20.png ** Package changed: ubuntu => fcheck (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1784557 Title: OS has become slow ,fan is running full To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fcheck/+bug/1784557/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
