|  |  | 
|  | menu "Profiling support" | 
|  | depends on EXPERIMENTAL | 
|  |  | 
|  | config PROFILING | 
|  | bool "Profiling support (EXPERIMENTAL)" | 
|  | help | 
|  | Say Y here to enable the extended profiling support mechanisms used | 
|  | by profilers such as OProfile. | 
|  |  | 
|  | config OPROFILE | 
|  | tristate "OProfile system profiling (EXPERIMENTAL)" | 
|  | depends on PROFILING | 
|  | help | 
|  | OProfile is a profiling system capable of profiling the | 
|  | whole system, include the kernel, kernel modules, libraries, | 
|  | and applications. | 
|  |  | 
|  | Due to firmware bugs, you may need to use the "nohalt" boot | 
|  | option if you're using OProfile with the hardware performance | 
|  | counters. | 
|  |  | 
|  | If unsure, say N. | 
|  |  | 
|  | endmenu | 
|  |  |