Lines Matching refs:tracing

88 	 Adds a very slight overhead to tracing when enabled.
123 # be able to offer generic tracing facilities:
137 	  Enable the kernel tracing infrastructure.
154 	  tracing is enabled by the administrator. If it's runtime disabled
185 	  Enable tracing of disable and enable events for preemption and irqs.
206 	      echo 0 > /sys/kernel/debug/tracing/tracing_max_latency
231 	      echo 0 > /sys/kernel/debug/tracing/tracing_max_latency
259 	 Some files are created in the tracing directory when this
303 	  Allow tracing users to take snapshot of the current buffer using the
306 	      echo 1 > /sys/kernel/debug/tracing/snapshot
318 	      echo 1 > /sys/kernel/debug/tracing/per_cpu/cpu2/snapshot
320 	  After which, only the tracing buffer for CPU 2 was swapped with
321 	  the main tracing buffer, and the other CPU buffers remain the same.
365 	  /sys/kernel/debug/tracing/trace_stat/branch_annotated
378 	  /sys/kernel/debug/tracing/trace_stat/branch_all
392 	  profiled. Profiling the tracing infrastructure can only happen
417 	  kernel and displays it in /sys/kernel/debug/tracing/stack_trace.
434 	bool "Support for tracing block IO actions"
453 	    echo blk > /sys/kernel/debug/tracing/current_tracer
454 	    cat /sys/kernel/debug/tracing/trace_pipe
466 	  This allows the user to add tracing events (similar to tracepoints)
506 	  This allows the user to add tracing events on top of userspace
525 	bool "enable/disable function tracing dynamically"
530 	  This option will modify all the calls to function tracing
539 	  See the files in /sys/kernel/debug/tracing:
545 	  otherwise has native performance as long as no tracing is active.
606 	bool "Memory mapped IO tracing"
622 	  tracing_map is a special-purpose lock-free map for tracing,
642 	  Inter-event tracing of quantities such as latencies is also
759 	in the tracing directory called "eval_map" that will show the
775 	  Enable tracing events for gpio subsystem