The system library testing dialog box shows you which file is currently being tested, how many systems have been found, and how much time has elapsed since testing began. Note: if you have changed the status of a particular directory so it is not included in the test runs, the files in that directory will not be searched for systems. See the Changing Data Type and Directory Information help section.
When you run a system library test, Investigator starts a separate thread for the test. You can think of this as running a separate program. You have the option of changing the priority for the thread. For example, you can make it the most or least important thread (or process) running on your computer by selecting the appropriate process level.
You also have the ability to pause testing if you want to temporarily use your computer for another use.
After a few test runs, you will know how long testing takes so you will be able to estimate how much longer the testing will take at a glance.
Once testing concludes, you will progress to the Review System Library Test List dialog box.