[erlang-questions] Graphical display of messages

Torben Hoffmann torben.hoffmann@REDACTED
Tue Jan 13 16:34:03 CET 2015

Hi David,

For the "swim-lane" aka MSC view you can consider using the et application:

The et_viewer can show a really nice MSC of what is going on.

I used it with QuickCheck to get an MSC of a failing test case as it was easier to
figure out what was going on that way.


David Welton writes:

> Hi,
> I'm wondering if something like this exists:
> I'd like to create various graphics to show the relationships between
> different processes and/or applications.  I could see a couple of
> different displays:
> * The more messages go back and forth, the stronger a link is shown.
> I think graphviz probably has a way to generate this.
> * A "swim-lane" graphic that tracks who sent what when.  Useful for
> getting an idea of how a system works.  Not sure how to generate that
> one.
> I envision it working like so:
> 1) Gather a list of pids for an application.
> 2) Trace those pids send/receive operations, and write those to a file.
> 3) Process the file and generate the desired graph...
> Is there something like that out there already?
> This is pretty cool, and similar to what I'm interested in, but not
> exactly: https://www.youtube.com/watch?v=lHoWfeNuAN8 -
> https://github.com/krestenkrab/erlubi
> Thank you

Torben Hoffmann
Erlang Solutions Ltd.
Tel: +45 25 14 05 38

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