very interesting - gcc and make max CPUs at boot

[spamhog]

Booting this morning I noticed high memory usage and CPUs at 100% for a few seconds.

I quickly opened a task manager and saw both gcc and make were hyperactive, but couldn't see the commands.

Clearly something was compiling at boot.

ClamAV doesn't notice anything strange.

I use several communications apps like Telegram, Wire, Zoom, Keybase, Wine, rclone, google-drive-ocamlfuse, that to some extent might live in their own worlds.

I suspect some of them may be compiling some update of glue code essential to run on my platform.

How can I log / see non-kernel tasks spawned at boot?

[Lubuntu bionic 18.04.3 LTS but I really think it's not release related]

Thank you in eager anticipation!

Spamhog