This is a tool written in Go that uses the containerd/cgroups library to print out cgroup (control group) statistics for a given cgroup. This package currently only supports cgroupsV1. You can specify the type of stats to print out using command line flags.

This tool provides more granular and exact information about the stats it returns as compared to systemd_cgtop (which reports cache memory as part of memory causing misleading information about how much active memory is being used). See: https://systemd-devel.freedesktop.narkive.com/WnOE0u0k/systemd-cgtop-memory-utilization-display-not-useful

This tool requires the containerd/cgroups Go library. You can install it using the following command:

go get github.com/containerd/cgroups

You can run the tool using the go run command. You must provide the cgroup path using the -path flag. You can also specify what kind of stats to print out using the -cpu, -mem, -pids, -blkio, and -hugetlb flags.

go run main.go -path=<cgroup_path> [-cpu] [-mem] [-pids] [-blkio] [-hugetlb]

For example, the following command will print out the CPU, Memory, and PIDs stats of the specified cgroup:

go run main.go -path=/sys/fs/cgroup/unified/system.slice/docker.service -cpu -mem -pids

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.