systemd-cgls 命令

常用示例

说明

systemd-cgls recursively shows the contents of the Linux control group (cgroup) hierarchy in a tree format. It displays which processes belong to which control groups, organized by systemd slices, scopes, and services. If arguments are specified, shows all member processes of the specified control groups plus their subgroups. If no argument is given and the current working directory is beneath /sys/fs/cgroup/, it shows the contents of that cgroup. Otherwise, the full systemd control group hierarchy is shown. The tool provides a clear visual representation of the cgroup nesting and processes, making it useful for understanding how systemd organizes processes and for debugging resource management issues.

参数

-u, --unit _UNIT_

Show the cgroup subtree of the specified systemd unit(s).

-a, --all

Show all control groups, including empty ones that contain no processes.

-l, --full

Do not ellipsize (truncate) process tree members.

-k

Include kernel threads in the output.

--no-pager

Do not pipe output into a pager.

-M, --machine _CONTAINER_

Show control group contents in the specified container.

-h, --help

Display help information.