viewprof is a text-based interactive GHC .prof viewer.
It has three display modes:
- Aggregate cost centers view: This is the default view. It groups cost centers by their name and module name, like the middle section of .prof files.
- Call sites view: If you press enter on a cost center, viewprof displays call sites of the cost center you selected. This view tells how much the cost center spent for each call site.
- Modules view: If you press M, viewprof displays the module level breakdown. This view tells coarse overview of cost attribution.
Note: Currently viewprof doesn't support Windows because the underlying library (vty) doesn't support it yet. See #1.
stack install viewprof
| keys | action |
|---|---|
q or escape |
quit the current view |
j or ↓ |
move focus down |
k or ↑ |
move focus up |
gg |
move focus to the top |
G |
move focus to the bottom |
C |
display aggregate cost center view |
M |
switch to module breakdown |
enter |
select a cost center and display call sites |
t |
sort by time |
a |
sort by allocation |
e |
sort by # of entries |
h or ? |
show key bindings |
i |
show profile information |
viewprof was originally meant to be a Haskell port of mkotha/viewprof, which is a text-based .prof viewer written in Common Lisp.