We maintain a fork of pyinstrument where we stage changes that we want to merge upstream.
Proposed Data Format
type: trace version: 1 root: - description: some_function_name self_time: 10.45 # number of seconds spent in this function that was not spent in functions called from within this function children: - description: inner_function # This function was called by some_function_name() self_time: 1.456 - description: another_function self_time: 0 # No appreciable time was spent in this function, all of the time was spent in the function it calls. children: - description: even_deeper self_time: 14.631 - description: another_function self_time: 1.2 # This call to another_function does not result in a call to "even_deeper()" and does spend some time doing stuff. Note that appears separately in the data.