Ubuntu Touch: Support cpuset within Android container

[Flohack74]

Android makes considerable use of cpuset cgroup controllers for scheduling work on certain CPUs for certain system services. Due to the different nature of how UT is mounting cgroup controllers the container could not write the necessary infos into the cgroupfs associated with the cgroup controller.

These PRs/MRs are meant to fix that. It will hopefully improve snappiness and power consumption on a few devices at least.

• https://github.com/Halium/android_system_core/pull/15
• https://github.com/Halium/hybris-patches/pull/43
• https://github.com/Halium/hybris-patches/pull/42
• https://gitlab.com/ubports/core/hybris-support/lxc-android-config/-/merge_requests/67 (merged)
• https://gitlab.com/ubports/core/rootfs-builder-debos/-/merge_requests/77 (merged)

[gbdomubpkm]

I installed the latest RC (V 51) on the Volla this morning. Does this mean that I should observe a longer battery life under my identical conditions of use?

[Flohack74]

Hi, yes you could try to observe this. However it always depends if cpusets really make a difference for your SoC or not.