On Monday, May 04, 2015 03:10:37 PM Michael Turquette wrote: > This series implements an event-driven cpufreq governor that scales cpu > frequency as a function of cfs runqueue utilization. The intent of this RFC is > to get some discussion going about how the scheduler can become the policy > engine for selecting cpu frequency, what limitations exist and what design do > we want to take to get to a solution. > > This work is a different take on the patches I posted in November: > http://lkml.kernel.org/r/<1413958051-7103-1-git-send-email-mturque...@linaro.org> > > This series depends on having frequency-invariant representations for load. > This requires Vincent's recently merged cpu capacity rework patches, as well > as > a new patch from Morten included here. Morten's patch will likely make an > appearance in his energy aware scheduling v4 series. > > Thanks to Juri Lelli <juri.le...@arm.com> for contributing to the development > of the governor. > > A git branch with these patches can be pulled from here: > https://git.linaro.org/people/mike.turquette/linux.git sched-freq > > Smoke testing has been done on an OMAP4 Pandaboard and an Exynos 5800 > Chromebook2. Extensive benchmarking and regression testing has not yet been > done. Before sinking too much time into extensive testing I'd like to get > feedback on the general design. > > Michael Turquette (3): > sched: sched feature for cpu frequency selection > sched: export get_cpu_usage & capacity_orig_of > sched: cpufreq_sched_cfs: PELT-based cpu frequency scaling > > Morten Rasmussen (1): > arm: Frequency invariant scheduler load-tracking support > > arch/arm/include/asm/topology.h | 7 + > arch/arm/kernel/smp.c | 53 ++++++- > arch/arm/kernel/topology.c | 17 +++ > drivers/cpufreq/Kconfig | 24 ++++ > include/linux/cpufreq.h | 3 + > kernel/sched/Makefile | 1 + > kernel/sched/cpufreq_cfs.c | 311 > ++++++++++++++++++++++++++++++++++++++++ > kernel/sched/fair.c | 48 +++---- > kernel/sched/features.h | 6 + > kernel/sched/sched.h | 39 +++++ > 10 files changed, 475 insertions(+), 34 deletions(-) > create mode 100644 kernel/sched/cpufreq_cfs.c
Can you *please* always CC PM-related patches to linux-pm? -- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center. -- 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/
