File path for the method call site.

Bottom up

The bottom up view shows the method trace for the CPU profile but,
as the name suggests, it’s a bottom-up representation of the profile.
This means that each top-level method in the table is actually the
last method in the call stack for a given CPU sample (in other words,
it’s the leaf node for the sample).

In this table, a method can be expanded to show its callers.

Time the method spent executing its own code
    as well as the code for its callee.