path: root/litmus/Kconfig

menu "LITMUS^RT"

menu "Real-Time Synchronization"

config NP_SECTION
        bool "Non-preemptive section support"
	default n
	help
	  Allow tasks to become non-preemptable.
          Note that plugins still need to explicitly support non-preemptivity.
          Currently, only GSN-EDF and PSN-EDF have such support.

	  This is required to support the FMLP.
	  If disabled, all tasks will be considered preemptable at all times.

config SRP
	bool "Stack Resource Policy (SRP)"
	default n
	help
	  Include support for Baker's Stack Resource Policy.

	  Say Yes if you want FMLP local long critical section
	  synchronization support.

config FMLP
	bool "FMLP support"
	depends on NP_SECTION
	default n
	help
	  Include support for deterministic multiprocessor real-time
	  synchronization support.

	  Say Yes if you want FMLP long critical section
	  synchronization support.

endmenu

menu "Tracing"

config FEATHER_TRACE
	bool "Feather-Trace Infrastructure"
	default y
	help
	  Feather-Trace basic tracing infrastructure. Includes device file
	  driver and instrumentation point support.


config SCHED_TASK_TRACE
	bool "Trace real-time tasks"
	depends on FEATHER_TRACE
	default y
	help
	  Include support for the sched_trace_XXX() tracing functions. This
          allows the collection of real-time task events such as job
	  completions, job releases, early completions, etc. This results in  a
	  small overhead in the scheduling code. Disable if the overhead is not
	  acceptable (e.g., benchmarking).

	  Say Yes for debugging.
	  Say No for overhead tracing.

config SCHED_OVERHEAD_TRACE
	bool "Record timestamps for overhead measurements"
	depends on FEATHER_TRACE
	default n
	help
	  Export event stream for overhead tracing.
	  Say Yes for overhead tracing.

config SCHED_DEBUG_TRACE
	bool "TRACE() debugging"
	default y
	help
	  Include support for sched_trace_log_messageg(), which is used to
	  implement TRACE(). If disabled, no TRACE() messages will be included
	  in the kernel, and no overheads due to debugging statements will be
	  incurred by the scheduler. Disable if the overhead is not acceptable
	  (e.g. benchmarking).

	  Say Yes for debugging.
	  Say No for overhead tracing.

endmenu

endmenu