In Perf’s annotate view, the runtime consumed by each instruction is given on the left side as a percentage. Is there some option to have some absolute quantity (probably samples) displayed instead?
I am using some C code with classical C arrays as well as with Numpy Arrays (for use in a Python module) and I want to compare the performances by having it run on some identical example cases. There are certain parts (e.g., initialisation) whose performance I know to differ and which I am not interested in. However, these affect the total runtime and thus render the percentage values for the other parts uncomparable – unless I want to transform the values myself. If I could access the total runtimes, I could easily compare the different variants piece by piece.
It appears that the flag -n showing samples has been added to perf annotate in 2017. I haven’t tested it yet though.