Diagnostics


Never remove diagnostics
You can't rebuild and reflash just to debug
Especially if the problem happens rarely

Diagnostics can be disabled, but should not be removed
Reporting to the user is the most time-consuming task
You can enable diagnostics on demand
Still, having two different performance figures is bad
Sometimes, you can leave everything on all the time
Which save a scaring "if" as well
Collecting information is useful anyways
You may save diags to a hidden log file

And never say never
If RAM/flash is an issue, you can choose to build without diagnostics
A diag-less build may fit a smaller CPU model
A bugless system requires no diagnostics at all