How to find out how much the program loads the disk?

Question

linux

Hello.
You need a cli command like time, which you just write before the program start command, and after closing the program, you get the average load figures. Personally, I need disk load data, specifically for this program. Is there anything suitable?

Answer 1

pidstat seems to give everything literally for the process on the command line,
but with the atop interface (it has a separate service, you can read and process the data yourself), iotop, etc.

Answer 2

Turn off everything that actively touches the disk, except for your program, and look iostat.

Answer 3

iotop -oka

Answer 4

you can see the activity of the file system in linux with the nmon command