On Thu, Jan 28, 2010 at 04:25:47PM -0700, dann frazier wrote: > > Of FUNCTION_TRACER, Kconfig says: > If it's runtime disabled > (the bootup default), then the overhead of the instructions is very > small and not measurable even in micro-benchmarks. > > And for STACK_TRACER: > If this is configured with DYNAMIC_FTRACE then it will not have any > overhead while the stack tracer is disabled. > > So I've gone ahead and enabled them in svn.
well it depends on FRAME_POINTER. i'd consider the feature worth it, but aboves has a measurable although small performance hit on x86_32. -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
