As we all know, cpuidle can’t save any power if cpu is wakeup frequently during idle– cpu doesn’t have chance to go to deep sleep. So to get power savings, besides cpuidle support, we must remove those unnecessary wakeups.
This is a companion discussion topic for the original entry at https://www.haiku-os.org/blog/yongcong/2012-05-27_cpuidle_gsoc_community_bonding_report/