Garbage collection does not occur every time the BlackBerry device idles. It occurs only when the system considers a garbage collection operation to be beneficial for optimal system performance and maximized battery performance.

To improve performance without impacting the BlackBerry device user experience, the system attempts to perform the following garbage collection operations when the BlackBerry device idles:

• A full garbage collection operation can occur when the BlackBerry device idles for a relatively short period of time.
• A thorough garbage collection operation can occur when the BlackBerry device idles for a significant period of time.