cgget
read cgroup parameters
TLDR
Display all parameters for a cgroup
$ cgget -a [path/to/cgroup]
Display a specific parameter for a cgroup$ cgget -r [cpu.shares] [path/to/cgroup]
Display multiple parameters$ cgget -r [cpuset.cpus] -r [cpuset.mems] [path/to/cgroup]
Display parameters for a specific controller$ cgget -g [cpu]:[path/to/cgroup]
Display values only without parameter names$ cgget -v -r [memory.limit_in_bytes] [path/to/cgroup]
Display without group headers$ cgget -n -g [cpu] /
Show current cgroups setup mode$ cgget -m
SYNOPSIS
cgget [-n] [-v] [-b] [-m] [-r name] [-g controller] [-a] path...cgget [-n] [-v] [-b] [-m] [-r name] -g controller:path...
DESCRIPTION
cgget prints parameters of Linux control groups (cgroups). Cgroups are a kernel mechanism for organizing processes and managing resource allocation including CPU, memory, and I/O.If no controller or variable is specified, values for all available parameters are displayed. The command supports both cgroup v1 (legacy) and v2 (unified) hierarchies.
PARAMETERS
-a, --all
Print variables for all controllers in the given cgroup-g controller[:path]
Specify controller and optionally path to display-r, --variable name
Display specific parameter (can be used multiple times)-n
Do not print group name headers-v, --values-only
Print only values without parameter names-m
Display current cgroups setup mode (legacy, unified, or hybrid)-b
Ignore default systemd delegated hierarchy path; construct paths relative to root hierarchy-c
Display controllers and their versions (can combine with -m)-h, --help
Display help and exit
INSTALL
sudo apt install cgroup-tools
sudo apk add cgroup-tools
CAVEATS
The CGROUP_LOGLEVEL environment variable controls verbosity (DEBUG, INFO, WARNING, ERROR).Requires appropriate permissions to read cgroup parameters. Some parameters may only be available with root access.