BCC - Tools for BPF-based Linux IO analysis, networking, monitoring, and more https://github.com/iovisor/bcc
$ kubectl debug node/default-pool-3mrgkk --image debian -it --profile=sysadmin --share-processes=true -- bash
apt update
apt install bpfcc-tools/stable
ln -s /host/lib/modules/ /lib/modules
ln -s /host/usr/src/* /usr/src/
mount -t debugfs debugfs /sys/kernel/debug
mount -t tracefs tracefs /sys/kernel/tracing
cachetop-bpfcc