1. 12 Sep, 2009 8 commits
  2. 11 Sep, 2009 7 commits
    • jolsa@redhat.com's avatar
      tracing: trace parser support for function and graph · 689fd8b6
      jolsa@redhat.com authored
      
      
      Convert the writing to 'set_graph_function', 'set_ftrace_filter'
      and 'set_ftrace_notrace' to use the generic trace_parser
      'trace_get_user' function.
      
      Removed FTRACE_ITER_CONT flag, since it's not needed after this change.
      
      Minor fix in set_graph_function display - g_show function.
      Signed-off-by: default avatarJiri Olsa <jolsa@redhat.com>
      LKML-Reference: <1252682969-3366-4-git-send-email-jolsa@redhat.com>
      Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
      689fd8b6
    • jolsa@redhat.com's avatar
      tracing: trace parser support for set_event · 48966364
      jolsa@redhat.com authored
      
      
      Convert the parsing of the file 'set_event' to use the generic
      trace_praser 'trace_get_user' function.
      Signed-off-by: default avatarJiri Olsa <jolsa@redhat.com>
      LKML-Reference: <1252682969-3366-3-git-send-email-jolsa@redhat.com>
      Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
      48966364
    • jolsa@redhat.com's avatar
      tracing: create generic trace parser · b63f39ea
      jolsa@redhat.com authored
      
      
      Create a "trace_parser" that can parse the user space input for
      separate words.
      
      struct trace_parser is the descriptor.
      
      Generic "trace_get_user" function that can be a helper to read multiple
      words passed in by user space.
      Signed-off-by: default avatarJiri Olsa <jolsa@redhat.com>
      LKML-Reference: <1252682969-3366-2-git-send-email-jolsa@redhat.com>
      Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
      b63f39ea
    • Steven Rostedt's avatar
      tracing: consolidate code between trace_output.c and trace_function_graph.c · f81c972d
      Steven Rostedt authored
      
      
      Both trace_output.c and trace_function_graph.c do basically the same
      thing to handle the printing of the latency-format. This patch moves
      the code into one function that both can use.
      Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
      f81c972d
    • Steven Rostedt's avatar
      tracing: add lock depth to entries · 637e7e86
      Steven Rostedt authored
      
      
      This patch adds the lock depth of the big kernel lock to the generic
      entry header. This way we can see the depth of the lock and help
      in removing the BKL.
      
      Example:
      
       #                  _------=> CPU#
       #                 / _-----=> irqs-off
       #                | / _----=> need-resched
       #                || / _---=> hardirq/softirq
       #                ||| / _--=> preempt-depth
       #                |||| /_--=> lock-depth
       #                |||||/     delay
       #  cmd     pid   |||||| time  |   caller
       #     \   /      ||||||   \   |   /
         <idle>-0       2.N..3 5902255250us+: lock_acquire: read rcu_read_lock
         <idle>-0       2.N..3 5902255253us+: lock_release: rcu_read_lock
         <idle>-0       2dN..3 5902255257us+: lock_acquire: xtime_lock
         <idle>-0       2dN..4 5902255259us : lock_acquire: clocksource_lock
         <idle>-0       2dN..4 5902255261us+: lock_release: clocksource_lock
      Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
      637e7e86
    • Steven Rostedt's avatar
      tracing: move tgid out of generic entry and into userstack · 48659d31
      Steven Rostedt authored
      
      
      The userstack trace required the recording of the tgid entry.
      Unfortunately, it was added to the generic entry where it wasted
      4 bytes of every entry and was only used by one entry.
      
      This patch moves it out of the generic field and moves it into the
      only user (userstack_entry).
      Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
      48659d31
    • 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
  3. 10 Sep, 2009 1 commit
  4. 09 Sep, 2009 6 commits
  5. 05 Sep, 2009 18 commits