ubuntu-x-swat team mailing list archive

[Benjamin Schmid <524281@xxxxxxxxxxxxxxxxxx>]

@Captain Chaos: To keep it short: These ticks are imposed by the Linux
Kernel while trying to shift & balance the workload over the available
CPU cores. The problem here is, that these "ticks"  occur during idling
phases and therefore inhibit the CPUs to fall into their power-saving
states. A little annoying for mobile users as this reduced battery life
and increases heat & fan activity. That's all.

This is a Linux kernel (not an Ubuntu) issue, so we just have to wait
until Linus integrates the fixes into the mainline kernel to get rid of
this annoyance.  The Ubuntu & Kernel guys already took great actions to
trigger a solution. Many thanks for that!

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https://bugs.launchpad.net/bugs/524281

Title:
  Tens of wakes per second in "[kernel scheduler] Load balancing tick"
  on Core 2 Duo even with only 1 core enabled