Messages in this thread | | | Date | Tue, 7 Aug 2018 22:38:05 +0800 | From | leo.yan@linaro ... | Subject | Re: [PATCH v1 0/2] Optimization CPU idle state impacted by tick |
| |
On Tue, Aug 07, 2018 at 10:27:02PM +0800, Leo Yan wrote: > After Rafael's patch series 'sched/cpuidle: Idle loop rework' has been > merged in mainline kernel, it perfectly resolved the Powernightmares > issue [1] with not stopping the tick during the idle loop; we verified > this patch series on Arm platform (96boards Hikey620 with octa CA53 > CPUs) with the rt-app [2] program to generate workloads: a single task > with below combinded configurations with period 5ms and duty cycle > 1%/3%/5%/10%/20%/30%/40%.
Oops, I missed the two reference links, for complete info so list here:
[1] https://tu-dresden.de/zih/forschung/ressourcen/dateien/projekte/haec/powernightmares.pdf?lang=en [2] https://git.linaro.org/power/rt-app.git
Thanks, Leo Yan
| |