Lines Matching refs:tracing
161 Adds a very slight overhead to tracing when enabled.
196 # be able to offer generic tracing facilities:
209 Enable the kernel tracing infrastructure.
218 The tracing interface was moved from /sys/kernel/debug/tracing
219 to /sys/kernel/tracing in 2015, but the tracing file system
232 kernel cmdline at boot time for debugging (tracing) driver
249 tracing is enabled by the administrator. If it's runtime disabled
307 This option will modify all the calls to function tracing
316 See the files in /sys/kernel/tracing:
322 otherwise has native performance as long as no tracing is active.
350 bool "Function trace tracing code"
353 Normally all the tracing code is set to notrace, where the function
354 tracer will ignore all the tracing functions. Sometimes it is useful
355 for debugging to trace some of the tracing infratructure itself.
356 Enable this to allow some of the tracing infrastructure to be traced
358 tracing if events and other tracing features are enabled along with
359 function tracing.
399 kernel and displays it in /sys/kernel/tracing/stack_trace.
438 echo 0 > /sys/kernel/tracing/tracing_max_latency
461 echo 0 > /sys/kernel/tracing/tracing_max_latency
489 Some files are created in the tracing directory when this
576 bool "Memory mapped IO tracing"
616 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
640 echo 1 > /sys/kernel/tracing/per_cpu/cpu2/snapshot
642 After which, only the tracing buffer for CPU 2 was swapped with
643 the main tracing buffer, and the other CPU buffers remain the same.
687 /sys/kernel/tracing/trace_stat/branch_annotated
700 /sys/kernel/tracing/trace_stat/branch_all
714 profiled. Profiling the tracing infrastructure can only happen
732 bool "Support for tracing block IO actions"
751 echo blk > /sys/kernel/tracing/current_tracer
752 cat /sys/kernel/tracing/trace_pipe
765 This allows user to add tracing events on the function entry and
803 This allows the user to add tracing events (similar to tracepoints)
844 This allows the user to add tracing events on top of userspace
918 tracing_map is a special-purpose lock-free map for tracing,
949 processes can determine if their tracing events should be
972 Inter-event tracing of quantities such as latencies is also
1050 in the tracing directory called "eval_map" that will show the
1062 bool "Record functions that recurse in function tracing"
1065 All callbacks that attach to the function tracing have some sort
1091 All callbacks that attach to the function tracing have some sort of
1166 where the ftrace knows where to patch functions for tracing
1233 cd /sys/kernel/tracing/instances/ptracingtest
1337 tristate "Test module for remote tracing"