Stability
The FBT provider uses DTrace's stability mechanism to describe its stabilities, as shown
in the following table. For more information about the stability mechanism, see Chapter 39, Stability.
Element |
Name
stability |
Data stability |
Dependency class |
|---|
Provider |
Evolving |
Evolving |
ISA |
Module |
Private |
Private |
Unknown |
Function |
Private |
Private |
Unknown |
Name |
Evolving |
Evolving |
ISA |
Arguments |
Private |
Private |
ISA |
As FBT exposes the kernel implementation, nothing about it is Stable — and
the Module and Function name and data stability are explicitly Private. The data
stability for Provider and Name are Evolving, but all other data stabilities are
Private: they are artifacts of the current implementation. The dependency class for FBT
is ISA: while FBT is available on all current instruction set architectures, there is
no guarantee that FBT will be available on arbitrary future instruction set architectures.
