menuconfig INSTRUMENTATION bool "Instrumentation Support" default y ---help--- Say Y here to get to see options related to performance measurement, system-wide debugging, and testing. This option alone does not add any kernel code. If you say N, all options in this submenu will be skipped and disabled. If you're trying to debug the kernel itself, go see the Kernel Hacking menu. if INSTRUMENTATION 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 depends on ALPHA || ARM || BLACKFIN || X86_32 || IA64 || M32R || MIPS || PARISC || PPC || S390 || SUPERH || SPARC || X86_64 help OProfile is a profiling system capable of profiling the whole system, include the kernel, kernel modules, libraries, and applications. If unsure, say N. config KPROBES bool "Kprobes" depends on KALLSYMS && MODULES depends on X86_32 || IA64 || PPC || S390 || SPARC64 || X86_64 || AVR32 help Kprobes allows you to trap at almost any kernel address and execute a callback function. register_kprobe() establishes a probepoint and specifies the callback. Kprobes is useful for kernel debugging, non-intrusive instrumentation and testing. If in doubt, say "N". endif # INSTRUMENTATION