What load can Raspberry Pi handle?

About a year ago, I joined a discussionon Reddit. User with a nickname SmokingTurkeyrequested to write several measurement points to the SQL database on the change of the value, with a timestamp. The value of the digital signals changed so that they were in the ON state for about 100 ms. He wrote that he could not use a SCADA system, which usually does not have a fast enough reading cycle.

This is a companion discussion topic for the original entry at https://d2000.ipesoft.com/blog/what-load-can-raspberry-pi-handle/