Hi,

I used:
https://docs.python.org/3/library/profile.html#module-cProfile
in the past to locate the problematic lines of code.

```
import cProfile
import pstats

with cProfile.Profile() as pr:
    run_the_problematic_function_etc()
stats = pstats.Stats(pr)
stats.sort_stats('cumtime').reverse_order()
stats.print_stats()
```
You might want to adopt these lines for your use-case. I started at the top-level of my application and then gradually moved the code to a more fitting function.

Cheers
Johannes

On 28.09.21 23:40, Jameson Collins wrote:
I have a completely blank flowgraph (well just the default 'Options' block).

On my 8 core, 2 GHz, Intel based virtual machine this flowgraph generates in under a second.

On my 4 core, 1GHz, embedded ARM processor it takes 56 seconds and completely maxes out 1 core while it's running.

Why might cause this?  How might I troubleshoot it?

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