Hi Krivyakin, Please use "./scripts/get_maintainer.pl" and send proper maintainers.
I added them. Thank you, Kyungmin Park On Fri, Jul 5, 2013 at 12:17 AM, Konstantin Krivyakin <k.krivya...@samsung.com> wrote: > This patchset adds per-process power consumption measurement facility. > Power consumption is very important on mobile platforms. This code > allows to measure consumed power in Watts*Hours. The consumed power > for process is updated on scheduler switch and depends on current > CPU voltage and frequency. > > The formula for computation is: P = C * V^2 * f, where C is a constant > that reflects capacity of the system, V is the current voltage and > f is the current frequency. > (Taken from: http://en.wikipedia.org/wiki/CPU_power_dissipation). > > In this patchset was added implementation for Exynos platform > to demonstrate how it works. > > To minimize scheduler impact for each CPU P-state the value of (V^2 *f) > was precomputed at the time of platform initialization. > > And to reduce performance impact furthermore, the C constant is multiplied > in userspace. > > Konstantin Krivyakin (3): > Add interface to receive current cpu power > Add power consumption counter in task_struct. > Update current cpu power when cpu freq change for exynos. > > drivers/cpufreq/cpufreq.c | 17 +++++++++++++++++ > drivers/cpufreq/exynos-cpufreq.c | 2 ++ > drivers/cpufreq/exynos-cpufreq.h | 1 + > drivers/cpufreq/exynos4x12-cpufreq.c | 19 ++++++++++++++++++- > include/linux/cpufreq.h | 6 ++++++ > include/linux/sched.h | 2 ++ > include/uapi/linux/taskstats.h | 2 ++ > kernel/fork.c | 1 + > kernel/sched/core.c | 8 ++++++++ > kernel/sched/cputime.c | 11 +++++++++++ > kernel/tsacct.c | 3 +++ > 11 files changed, 71 insertions(+), 1 deletion(-) > > -- > 1.7.9.5 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
