systemd-cgtop按资源使用情况显示最高control groups。
help
$ systemd-cgtop --help
systemd-cgtop [OPTIONS...] [CGROUP]
Show top control groups by their resource usage.
-h --help Show this help
--version Show package version
-p --order=path Order by path
-t --order=tasks Order by number of tasks/processes
-c --order=cpu Order by CPU load (default)
-m --order=memory Order by memory load
-i --order=io Order by IO load
-r --raw Provide raw (not human-readable) numbers
--cpu=percentage Show CPU usage as percentage (default)
--cpu=time Show CPU usage as time
-P Count userspace processes instead of tasks (excl. kernel)
-k Count all processes instead of tasks (incl. kernel)
--recursive=BOOL Sum up process count recursively
-d --delay=DELAY Delay between updates
-n --iterations=N Run for N iterations before exiting
-1 Shortcut for --iterations=1
-b --batch Run in batch mode, accepting no input
--depth=DEPTH Maximum traversal depth (default: 3)
-M --machine= Show container
See the systemd-cgtop(1) man page for details.
示例
$ systemd-cgtop
CGroup Tasks %CPU Memory Input/s Output/s
user.slice 5 2.4 35.9M - -
user.slice/user-0.slice 5 2.4 35.7M - -
user.slice/user-0.slice/session-3.scope 3 2.4 30.0M - -
/ 283 2.0 675.3M - -
system.slice 87 0.4 899.9M - -
system.slice/containerd.service 8 0.2 56.3M - -
system.slice/open-vm-tools.service 4 0.1 6.0M - -
system.slice/irqbalance.service 2 0.1 1.2M - -
...
# 按路径搜索
systemd-cgtop -p system.slice
systemd-cgtop -p init.scope
systemd-cgtop -p user.slice
# 按 cpu 排序
systemd-cgtop --order=cpu