This week, we learned about the 2 ways to profile a program
Sampling is one approach. In this approach the program is interrupted frequently to determine which function the most time is being used, and more specifically, where in the function the program is spending its time.
The other approach is instrumentation. It involves adding extra code to the program so that function calls can be recorded.
We were also taught about gprof and perf. Gprof works on both sampling and instrumentation. Perf works only on sampling. The man disadvantage to gprof is that it requires putting extra code into the program to make it work. Perf doesn't require this extra step but it gives less information. Because of this, I will likely end up trying to use gprof for the assignment just to get the most accurate readings.
This lesson overall was very helpful for assignment 2.
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