[kaba0]

That assumes that sudo the executable taking longer would linearly increase the time when in fact your OS loaded the exe into memory, created a process, allocated memory and let it go. A significant amount of time was just that, nothing related to the program’s job.

[Izkata]

"time /bin/false" and "time /bin/true" consistently give me 0.001s though

[kaba0]

“ When used alone, the -k (kill) option to sudo invalidates the user's cached credentials.”

IO wouldn’t get slower though, and likely that takes the majority of its running time.