davepacheco/node-stackvis — pull request #4 by ackalker (2012-11-20 19:47:43+00:00)
Title: Add support for SystemTap profile script output, add process name prefix

This adds a command-line tool and reader for dealing with output of SystemTap profiling scripts.

To capture data using SystemTap, you can use:
```
# stap -e "global ubt; \
probe timer.profile { ubt[execname(), sprint_ubacktrace()] += 1 }; \
probe timer.s(30) { exit() }" \
-o stap.out
$ cmd/stackcollapse-stap < stap.out > collapsed.out
```
Please see commit message for dealing with stap warnings about missing unwind data.