Callgrind source locations

[lesliev-figured]

I'm running perftools through rack-perftools_profiler, though I assume the issue is with perftools. The problem is that there is no location information in the callgrind format, there's just '??'. Is there any way to turn on location information?

[tmm1]

Location information is not supported; perftools.rb only captures function stacktraces.

You can try stackprof or rblineprof both of which provide source annotation.

[lesliev-figured]

Ok, thanks!