Make use of dynamic tracing and write/customize relevant to needs.

Potential examples:

https://twitter.com/freebsdfrau/status/1238541870612926465 modify to just focus on cron related stuff.

https://www.brendangregg.com/blog/2016-02-01/linux-wakeup-of...

Programming approaches:

ebpf : https://ebpf.io/projects/

Dtrace : https://www.brendangregg.com/dtrace.html

Ylang : https://blog.openresty.com/en/ylang-intro-part1/

Program example: Use execsnoop (https://www.brendangregg.com/dtrace.html ) & add wrapper/filter to feed relevant "live" info to dashboard.