Flag indicating that an Instrumentation class wants to take care of starting/stopping profiling itself, rather than relying on the default behavior of profiling the complete time it is running. This allows it to target profiling data at a specific set of operations.

Must be a boolean value, either "true" or "false".

This may also be a reference to a resource (in the form "@[package:]type:name") or theme attribute (in the form "?[package:][type:]name") containing a value of this type.

[Android Documentation]