Question

How to profile c++ code to get the call times and cost time of each line of the code, just as the profile tool
in Matlab does?

I tried to use things like -fprofile-arcs, but it only generates a code coverage report, in which call times can be found, but cost time cannot.

Can anybody help out? Regards.

Answer 1

You can compile with g++ -pg (or -p maybe or even --coverage; and -Wall is always helpful), then use gprof (or even gcov). And you could learn to use oprofile; read more about GCC debugging options