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0706f1c48c
linux/kernel/trace
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Steven Rostedt 0706f1c48c tracing: adding function timings to function profiler 
If the function graph trace is enabled, the function profiler will
use it to take the timing of the functions.

 cat /debug/tracing/trace_stat/functions

  Function                               Hit    Time
  --------                               ---    ----
  mwait_idle                             127    183028.4 us
  schedule                                26    151997.7 us
  __schedule                              31    151975.1 us
  sys_wait4                                2    74080.53 us
  do_wait                                  2    74077.80 us
  sys_newlstat                           138    39929.16 us
  do_path_lookup                         179    39845.79 us
  vfs_lstat_fd                           138    39761.97 us
  user_path_at                           153    39469.58 us
  path_walk                              179    39435.76 us
  __link_path_walk                       189    39143.73 us
[...]

Note the times are skewed due to the function graph tracer not taking
into account schedules.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
2009-03-24 23:41:09 -04:00
..
blktrace.c tracing: protect reader of cmdline output 2009-03-16 23:27:06 -04:00
events.c ftrace: event profile hooks 2009-03-20 10:17:07 +01:00
ftrace.c tracing: adding function timings to function profiler 2009-03-24 23:41:09 -04:00
Kconfig tracing: move function profiler data out of function struct 2009-03-24 23:41:06 -04:00
kmemtrace.c tracing: Introduce trace_buffer_{lock_reserve,unlock_commit} 2009-02-06 01:01:41 +01:00
Makefile ftrace: event profile hooks 2009-03-20 10:17:07 +01:00
ring_buffer.c tracing/ring-buffer: don't annotate rb_cpu_notify with __cpuinit 2009-03-21 10:54:10 +01:00
trace_boot.c tracing: Introduce trace_buffer_{lock_reserve,unlock_commit} 2009-02-06 01:01:41 +01:00
trace_branch.c tracing: add handler to trace_stat 2009-03-24 23:22:58 -04:00
trace_clock.c tracing: fix four sparse warnings 2009-03-22 18:16:54 +01:00
trace_event_profile.c ftrace: event profile hooks 2009-03-20 10:17:07 +01:00
trace_event_types.h tracing: remove recording function depth from trace_printk 2009-03-19 15:58:47 -04:00
trace_events_stage_1.h tracing: update comments to match event code macros 2009-03-10 13:12:58 -04:00
trace_events_stage_2.h tracing: show event name in trace for TRACE_EVENT created events 2009-03-12 22:00:19 -04:00
trace_events_stage_3.h ftrace: event profile hooks 2009-03-20 10:17:07 +01:00
trace_events.c ftrace: event profile hooks 2009-03-20 10:17:07 +01:00
trace_export.c tracing: remove funky whitespace in the trace code 2009-03-10 14:13:14 -04:00
trace_functions_graph.c tracing: adding function timings to function profiler 2009-03-24 23:41:09 -04:00
trace_functions.c tracing/core: use appropriate waiting on trace_pipe 2009-02-18 01:40:20 +01:00
trace_hw_branches.c tracing/hw-branch-tracing: convert bts-tracer mutex to a spinlock 2009-02-25 09:16:01 +01:00
trace_irqsoff.c tracing: have latency tracers set the latency format 2009-03-04 22:15:30 -05:00
trace_mmiotrace.c tracing: remove recording function depth from trace_printk 2009-03-19 15:58:47 -04:00
trace_nop.c trace: Call tracing_reset_online_cpus before tracer->init() 2009-02-06 01:01:41 +01:00
trace_output.c tracing: adding function timings to function profiler 2009-03-24 23:41:09 -04:00
trace_output.h tracing: adding function timings to function profiler 2009-03-24 23:41:09 -04:00
trace_power.c tracing: make power tracer start/stop methods lighter weight 2009-03-17 23:12:11 -04:00
trace_printk.c tracing: remove recording function depth from trace_printk 2009-03-19 15:58:47 -04:00
trace_sched_switch.c tracing: make sched_switch stop/start light weight 2009-03-17 23:10:45 -04:00
trace_sched_wakeup.c tracing: have latency tracers set the latency format 2009-03-04 22:15:30 -05:00
trace_selftest_dynamic.c ftrace: fix dynamic ftrace selftest 2008-05-23 21:13:23 +02:00
trace_selftest.c tracing: keep the tracing buffer after self-test failure 2009-03-22 15:17:21 +01:00
trace_stack.c tracing: left align location header in stack_trace 2009-03-13 00:00:58 -04:00
trace_stat.c tracing: add handler to trace_stat 2009-03-24 23:22:58 -04:00
trace_stat.h tracing: add handler to trace_stat 2009-03-24 23:22:58 -04:00
trace_syscalls.c tracing/syscalls: protect thread flag toggling from races 2009-03-16 09:13:16 +01:00
trace_sysprof.c tracing: make all file_operations const 2009-03-05 21:46:40 -05:00
trace_workqueue.c tracing: add handler to trace_stat 2009-03-24 23:22:58 -04:00
trace.c tracing: adding function timings to function profiler 2009-03-24 23:41:09 -04:00
trace.h tracing: adding function timings to function profiler 2009-03-24 23:41:09 -04:00