On Fri, Mar 15, 2013 at 11:54 AM, Chao Xie <xiechao.mail@xxxxxxxxx> wrote: > hi > It may be a old topic. > Now the cpufreq governors will sample for system work load. The > schduler knows about the current workload of each cores. So why not > make use of it? The sampling need take some time, so when the cpufreq > increase the frequency , the system has been busy for a period of > time. Making use of the schduler information can reduce time spending > at sampling. Hi Chao, I am working for Linaro Power Management Working Group and we know about this problem or solution. We have a dedicated blueprint towards this goal: https://blueprints.launchpad.net/linaro-big-little-system/+spec/sched-cooperation-with-dvfs-and-idling -- viresh -- To unsubscribe from this list: send the line "unsubscribe cpufreq" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
