You could probably do the same (if you have a DWT), and just snapshot values before and after, e.g.:

```rust
let start = get_ticks(); // dwt or groundhog
let x = do_expensive();
let stop = get_ticks();
// now do calculation, and print output to make sure output is used:
defmt::println!("{:?}", x);
defmt::println!("{=u32}", stop - start);