We can use this to notify the user that not enough samples where collected
to build a callgraph. This can happen when all the samples collected are
ignored (due to being in ignored kernel space address ranges for example).
Similar to the old sysprof, this generates a textual representation of the
descendants view. It matches the expansion of the treeview in the output
text.
Sometimes its really annoying to dive into a descendant and then want to
go back to where you were. This uses alt+left arrow to go back to the
previous node. It doesn't, however, re-expand the tree to the previous
state.
This is a major redesign a modernization of Sysprof. The core data
structures and design are largely the same, but it has been ported to
Gtk3 and has lots of additions that should make your profiling experience
smoother. Especially for those that are new to profiling.
There are some very simple help docs added, but we really need the
experts to come in and write some documentation here.
