can't produce meaningful graphs for my async application

[retkowski]

I ran

austin -i 20ms -x 120 -p 8 -o sample.out

and got the following graph, and all it seems to show is hundreds of threads that spend their time in /usr/local/lib/python3.12/threading.py:Condition.wait:359.

When I try to run with austin -e -i 10ms -x 120 -p 10 -o sample.out, it says

😣 No samples collected.

For comparison, the output of py-spy which properly shows the asyncio run's loop and where it actually spends its time:

[P403n1x87]

@ScientiaEtVeritas thanks for reporting this. Austin doesn't have a proper async support. One thing you could try is the -s option to collect only the samples that are on CPU

austin -si 20ms -x 120 -p 8 -o sample.out

For better async profiling in general, you could try echion instead.