mjhjmtu

My understanding is that, by default, systemd will start all processes under a single cgroup where cpu.share=1024. If you choose to override the cpu.share for a service, it will create a new cgroup for the processes under that service with cpu.share set to whatever value you've chosen.

I want to manually create a new cgroup with a custom cpu.share that gives me 60% of the CPU. To do that, I need to know the cpu.share values for all existing cgroups. Where is systemd setting these values? Is there an easy way for me to get this? /sys/fs/cgroup/cpu only contains the root group (set to 1024) and the groups I've manually created.

systemd's CGroup options are documented in `man systemd.exec. It sounds like the one you are looking for is:

`CPUWeight=`

Assign the specified CPU time weight to the processes executed, if the unified control group hierarchy is used on the system. These options take an integer
value and control the "cpu.weight" control group attribute. The allowed range is 1 to 10000. Defaults to 100. For details about this control group attribute,
see cgroup-v2.txt[2] and sched-design-CFS.txt[5]. The available CPU time is split up among all units within one slice relative to their CPU time weight.