Lines Matching refs:tracing

139 	 Adds a very slight overhead to tracing when enabled.
174 # be able to offer generic tracing facilities:
187 	  Enable the kernel tracing infrastructure.
197 	  kernel cmdline at boot time for debugging (tracing) driver
214 	  tracing is enabled by the administrator. If it's runtime disabled
246 	bool "enable/disable function tracing dynamically"
251 	  This option will modify all the calls to function tracing
260 	  See the files in /sys/kernel/tracing:
266 	  otherwise has native performance as long as no tracing is active.
324 	  kernel and displays it in /sys/kernel/tracing/stack_trace.
364 	      echo 0 > /sys/kernel/tracing/tracing_max_latency
388 	      echo 0 > /sys/kernel/tracing/tracing_max_latency
417 	 Some files are created in the tracing directory when this
504 	bool "Memory mapped IO tracing"
537 	  Allow tracing users to take snapshot of the current buffer using the
540 	      echo 1 > /sys/kernel/tracing/snapshot
552 	      echo 1 > /sys/kernel/tracing/per_cpu/cpu2/snapshot
554 	  After which, only the tracing buffer for CPU 2 was swapped with
555 	  the main tracing buffer, and the other CPU buffers remain the same.
599 	  /sys/kernel/tracing/trace_stat/branch_annotated
612 	  /sys/kernel/tracing/trace_stat/branch_all
626 	  profiled. Profiling the tracing infrastructure can only happen
644 	bool "Support for tracing block IO actions"
663 	    echo blk > /sys/kernel/tracing/current_tracer
664 	    cat /sys/kernel/tracing/trace_pipe
677 	  This allows user to add tracing events on the function entry and
703 	  This allows the user to add tracing events (similar to tracepoints)
744 	  This allows the user to add tracing events on top of userspace
809 	  tracing_map is a special-purpose lock-free map for tracing,
840 	  processes can determine if their tracing events should be
863 	  Inter-event tracing of quantities such as latencies is also
941 	in the tracing directory called "eval_map" that will show the
953 	bool "Record functions that recurse in function tracing"
956 	  All callbacks that attach to the function tracing have some sort
1044 	 where the ftrace knows where to patch functions for tracing