Thank you and I hope you have an opportunity to notate with Brendan Gregg’s syscall ideas:

The first strace is on display at the Computer History Museum in San Jose. It was made in 1961 using wire wrapped circuitry and core memory, and could trace up to 12 system calls per second. Within its sheet metal enclosure are four seats: for the surgeon, co-pilot, and their two secretaries. It could stay submerged at syscall depth for up to 9 hours.

https://www.brendangregg.com/blog/2014-05-11/strace-wow-much...