What is the impact of having profiling always turned on?

Having profiling always turned on means that the application constantly collects data about its performance and resource usage. This can lead to excessive resource consumption because the profiling process itself requires CPU time and memory to gather, store, and analyze data throughout the application's lifecycle. As profiling captures a wide range of activities to provide insights into system performance, the overhead can significantly affect application efficiency, particularly under heavy usage conditions.

Other options highlight different aspects; for instance, while profiling does provide valuable insights into performance, it does not usually enhance application performance directly and is not typically considered best practice to keep it always enabled in production. Rather, it is often utilized in development or testing environments. Additionally, profiling processes generally track all operations, not just successful ones, to give a comprehensive view of the application's behavior.