Messages in this thread |  | | | Date | Tue, 05 Feb 2008 09:04:04 -0800 | | From | Tim Bird <> | | Subject | Re: [PATCH 14/23 -v8] Add tracing of context switches |
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Steven Rostedt wrote: > Index: linux-mcount.git/lib/tracing/Kconfig > =================================================================== > --- linux-mcount.git.orig/lib/tracing/Kconfig 2008-01-30 15:18:18.000000000 -0500 > +++ linux-mcount.git/lib/tracing/Kconfig 2008-01-30 15:32:33.000000000 -0500 > @@ -23,3 +23,12 @@ config FUNCTION_TRACER > insert a call to an architecture specific __mcount routine, > that the debugging mechanism using this facility will hook by > providing a set of inline routines. > + > +config CONTEXT_SWITCH_TRACER > + bool "Trace process context switches" > + depends on DEBUG_KERNEL > + select TRACING > + help > + This tracer hooks into the context switch and records > + all switching of tasks. > +
This needs a "select MARKERS" or it doesn't compile.
My config has:
CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_TRACE_IRQFLAGS=y CONFIG_TRACER_MAX_TRACE=y CONFIG_FUNCTION_TRACER=y # CONFIG_EVENT_TRACER is not set # CONFIG_WAKEUP_TRACER is not set CONFIG_CONTEXT_SWITCH_TRACER=y
-- Tim
============================= Tim Bird Architecture Group Chair, CE Linux Forum Senior Staff Engineer, Sony Corporation of America =============================
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