systemd-cgtop
Monitor cgroup resource usage
TLDR
Start an interactive view
$ systemd-cgtop
Change the sort order$ systemd-cgtop --order [cpu|memory|path|tasks|io]
Show CPU usage by time instead of percentage$ systemd-cgtop --cpu=percentage
Change the update interval$ systemd-cgtop -d [interval]
Only count userspace processes (no kernel threads)$ systemd-cgtop -P
SYNOPSIS
systemd-cgtop [options]
DESCRIPTION
systemd-cgtop shows the top control groups by resource usage, similar to top but organized by cgroups. It displays CPU, memory, and I/O statistics for each control group.
The tool is useful for monitoring resource consumption by services and understanding which systemd units are using system resources. Interactive mode supports keyboard shortcuts for changing display options.
PARAMETERS
--order _field_
Sort by cpu, memory, path, tasks, or io-d, --delay _interval_
Update interval (supports ms, us, min suffixes)-P
Count only userspace processes-k
Include kernel threads in counts-n, --iterations _n_
Run for n iterations and exit-b, --batch
Run in batch mode (non-interactive)-r, --raw
Output raw numbers without units--depth _n_
Maximum cgroup tree depth to show
CAVEATS
I/O accounting requires appropriate cgroup controllers to be enabled. Some resource statistics may not be available depending on kernel configuration. Part of the systemd suite.
SEE ALSO
systemd-cgls(1), top(1), systemctl(1), cgroups(7)