There is only one PLL (Phase Locked Loop) in the processor, all CPUs get the resulting clock. When they go into deep idle states (deeper than C1, at least for my processor) then they give up their vote into the PLL as to what the frequency should be. Your single 100% task is dedicating the CPU frequency for all, for when they are active.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1768976 Title: Ubuntu 18.04 is overheating after upgrade from 16.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1768976/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
