Lines Matching refs:tracing

150 	 Adds a very slight overhead to tracing when enabled.
185 # be able to offer generic tracing facilities:
198 	  Enable the kernel tracing infrastructure.
208 	  kernel cmdline at boot time for debugging (tracing) driver
225 	  tracing is enabled by the administrator. If it's runtime disabled
278 	bool "enable/disable function tracing dynamically"
283 	  This option will modify all the calls to function tracing
292 	  See the files in /sys/kernel/tracing:
298 	  otherwise has native performance as long as no tracing is active.
355 	  kernel and displays it in /sys/kernel/tracing/stack_trace.
395 	      echo 0 > /sys/kernel/tracing/tracing_max_latency
419 	      echo 0 > /sys/kernel/tracing/tracing_max_latency
448 	 Some files are created in the tracing directory when this
535 	bool "Memory mapped IO tracing"
568 	  Allow tracing users to take snapshot of the current buffer using the
571 	      echo 1 > /sys/kernel/tracing/snapshot
583 	      echo 1 > /sys/kernel/tracing/per_cpu/cpu2/snapshot
585 	  After which, only the tracing buffer for CPU 2 was swapped with
586 	  the main tracing buffer, and the other CPU buffers remain the same.
630 	  /sys/kernel/tracing/trace_stat/branch_annotated
643 	  /sys/kernel/tracing/trace_stat/branch_all
657 	  profiled. Profiling the tracing infrastructure can only happen
675 	bool "Support for tracing block IO actions"
694 	    echo blk > /sys/kernel/tracing/current_tracer
695 	    cat /sys/kernel/tracing/trace_pipe
708 	  This allows user to add tracing events on the function entry and
734 	  This allows the user to add tracing events (similar to tracepoints)
775 	  This allows the user to add tracing events on top of userspace
840 	  tracing_map is a special-purpose lock-free map for tracing,
871 	  processes can determine if their tracing events should be
894 	  Inter-event tracing of quantities such as latencies is also
972 	in the tracing directory called "eval_map" that will show the
984 	bool "Record functions that recurse in function tracing"
987 	  All callbacks that attach to the function tracing have some sort
1013 	  All callbacks that attach to the function tracing have some sort of
1088 	 where the ftrace knows where to patch functions for tracing