This is very strange. After disabling cpu1 the wakeups-from-idle per second drops from ~31000 to ~250, and the <kernel IPI> : Rescheduling interrupts disappears from the output of the powertop.
But the power consumption actually increases. It goes from 22.8W while idling with 2 cores activated to 24.8W with only one. It should be the other way, so I dunno what is really happening. Maybe the powertop utility it's not really acurate with two cores. I forgot to say that this is on a Dell D830. And the battery runtime has improved a lot anyway from gutsy -> hardy (from 3.5 hours to almost 5 hours!) -- Kernel 2.6.24-2 causing ~1000 wakeups by "Rescheduling Interrupts" https://bugs.launchpad.net/bugs/177895 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs