When the file system that hosts the input log is fast, generating an input log should not have any noticeable effect on correlator performance. Consequently, the recommendation is to always run correlators that send information to input logs. Just make sure you have enough disk space for the input log. You need to monitor repeated use to determine how much space is required.

With the correlator generating an input log, you can implement your application so that it sends a minimum amount of information to the correlator status log. You do not need to log application information because you can always recover application information from the input log. Implementing an application that sends large amounts of application information to the correlator status log can negatively impact performance.