Lines Matching refs:tracing
157 Adds a very slight overhead to tracing when enabled.
192 # be able to offer generic tracing facilities:
205 Enable the kernel tracing infrastructure.
214 The tracing interface was moved from /sys/kernel/debug/tracing
215 to /sys/kernel/tracing in 2015, but the tracing file system
228 kernel cmdline at boot time for debugging (tracing) driver
245 tracing is enabled by the administrator. If it's runtime disabled
303 This option will modify all the calls to function tracing
312 See the files in /sys/kernel/tracing:
318 otherwise has native performance as long as no tracing is active.
346 bool "Function trace tracing code"
349 Normally all the tracing code is set to notrace, where the function
350 tracer will ignore all the tracing functions. Sometimes it is useful
351 for debugging to trace some of the tracing infratructure itself.
352 Enable this to allow some of the tracing infrastructure to be traced
354 tracing if events and other tracing features are enabled along with
355 function tracing.
395 kernel and displays it in /sys/kernel/tracing/stack_trace.
435 echo 0 > /sys/kernel/tracing/tracing_max_latency
459 echo 0 > /sys/kernel/tracing/tracing_max_latency
488 Some files are created in the tracing directory when this
575 bool "Memory mapped IO tracing"
615 For a tracing instance, this size may be changed by writing into
622 Allow tracing users to take snapshot of the current buffer using the
625 echo 1 > /sys/kernel/tracing/snapshot
637 echo 1 > /sys/kernel/tracing/per_cpu/cpu2/snapshot
639 After which, only the tracing buffer for CPU 2 was swapped with
640 the main tracing buffer, and the other CPU buffers remain the same.
684 /sys/kernel/tracing/trace_stat/branch_annotated
697 /sys/kernel/tracing/trace_stat/branch_all
711 profiled. Profiling the tracing infrastructure can only happen
729 bool "Support for tracing block IO actions"
748 echo blk > /sys/kernel/tracing/current_tracer
749 cat /sys/kernel/tracing/trace_pipe
762 This allows user to add tracing events on the function entry and
788 This allows the user to add tracing events (similar to tracepoints)
829 This allows the user to add tracing events on top of userspace
903 tracing_map is a special-purpose lock-free map for tracing,
934 processes can determine if their tracing events should be
957 Inter-event tracing of quantities such as latencies is also
1035 in the tracing directory called "eval_map" that will show the
1047 bool "Record functions that recurse in function tracing"
1050 All callbacks that attach to the function tracing have some sort
1076 All callbacks that attach to the function tracing have some sort of
1151 where the ftrace knows where to patch functions for tracing