1. 11 Sep, 2009 1 commit
    • Steven Rostedt's avatar
      tracing: add latency format to function_graph tracer · 49ff5903
      Steven Rostedt authored
      
      
      While debugging something with the function_graph tracer, I found the
      need to see the preempt count of the traces. Unfortunately, since
      the function graph tracer has its own output formatting, it does not
      honor the latency-format option.
      
      This patch makes the function_graph tracer honor the latency-format
      option, but still keeps control of the output. But now we have the
      same details that the latency-format supplies.
      
       # tracer: function_graph
       #
       #      _-----=> irqs-off
       #     / _----=> need-resched
       #    | / _---=> hardirq/softirq
       #    || / _--=> preempt-depth
       #    ||| /
       #    ||||
       # CPU||||  DURATION                  FUNCTION CALLS
       # |  ||||   |   |                     |   |   |   |
        3)  d..1  1.333 us    |        idle_cpu();
        3)  d.h1              |        tick_check_idle() {
        3)  d.h1  0.550 us    |          tick_check_oneshot_broadcast();
        3)  d.h1              |          tick_nohz_stop_idle() {
        3)  d.h1              |            ktime_get() {
        3)  d.h1              |              ktime_get_ts() {
      Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
      49ff5903
  2. 10 Sep, 2009 7 commits
  3. 06 Sep, 2009 2 commits
  4. 05 Sep, 2009 30 commits