Designed to show off how to trace a real-time application with the real-time-safe tracing system.
Features demonstrated:
- Enable and disable tracing dynamically.
- Trace custom code in your application with spans.
- Setting the output file location.
To run this:
$ make debug
$ sudo build/debug/examples/tracing_example/rt_tracing_exampleTo visualize the trace, go to https://cactusdynamics.github.io/perfetto (or
https://ui.perfetto.dev which doesn't have as much bells and whistles) and load
the trace in build/data1.perfetto and build/data2.perfetto.
You should be able to see something like this:
By clicking on the Loop slice, filtering and sorting with the table that pops
up, then clicking on the ID of the longest Loop in the table will bring you to
the following view:
Clicking on the Latency tab on the side bar and selecting the right span will get you something like the following:
