)]}'
{
  "commit": "0e95017355dcf43031da6d0e360a748717e56df1",
  "tree": "829989bfb494e8d2d773d9dc1bc014b7f28d3bed",
  "parents": [
    "1acaa1b2d9b5904c9cce06122990a2d71046ce16"
  ],
  "author": {
    "name": "Tim Bird",
    "email": "tim.bird@am.sony.com",
    "time": "Thu Feb 25 15:36:43 2010 -0800"
  },
  "committer": {
    "name": "Steven Rostedt",
    "email": "rostedt@goodmis.org",
    "time": "Fri Mar 05 21:20:57 2010 -0500"
  },
  "message": "function-graph: Add tracing_thresh support to function_graph tracer\n\nAdd support for tracing_thresh to the function_graph tracer.  This\nversion of this feature isolates the checks into new entry and\nreturn functions, to avoid adding more conditional code into the\nmain function_graph paths.\n\nWhen the tracing_thresh is set and the function graph tracer is\nenabled, only the functions that took longer than the time in\nmicroseconds that was set in tracing_thresh are recorded. To do this\nefficiently, only the function exits are recorded:\n\n [tracing]# echo 100 \u003e tracing_thresh\n [tracing]# echo function_graph \u003e current_tracer\n [tracing]# cat trace\n # tracer: function_graph\n #\n # CPU  DURATION                  FUNCTION CALLS\n # |     |   |                     |   |   |   |\n  1) ! 119.214 us  |  } /* smp_apic_timer_interrupt */\n  1)   \u003c\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d |\n  0) ! 101.527 us  |              } /* __rcu_process_callbacks */\n  0) ! 126.461 us  |            } /* rcu_process_callbacks */\n  0) ! 145.111 us  |          } /* __do_softirq */\n  0) ! 149.667 us  |        } /* do_softirq */\n  0) ! 168.817 us  |      } /* irq_exit */\n  0) ! 248.254 us  |    } /* smp_apic_timer_interrupt */\n\nAlso, add support for specifying tracing_thresh on the kernel\ncommand line.  When used like so: \"tracing_thresh\u003d200 ftrace\u003dfunction_graph\"\nthis can be used to analyse system startup.  It is important to disable\ntracing soon after boot, in order to avoid losing the trace data.\n\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Tim Bird \u003ctim.bird@am.sony.com\u003e\nLKML-Reference: \u003c4B87098B.4040308@am.sony.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "6efd5cb3c252c94a4ed0d04fbe53b6a3c5f9b7c3",
      "old_mode": 33188,
      "old_path": "kernel/trace/trace.c",
      "new_id": "ababedb4e87fff254e55877a8298ba5b14958e66",
      "new_mode": 33188,
      "new_path": "kernel/trace/trace.c"
    },
    {
      "type": "modify",
      "old_id": "fd05bcaf91b06cc8c979d02bb3decb1f3696df3a",
      "old_mode": 33188,
      "old_path": "kernel/trace/trace.h",
      "new_id": "1bc8cd1431d772e6a25d7cc26f55070b16836d23",
      "new_mode": 33188,
      "new_path": "kernel/trace/trace.h"
    },
    {
      "type": "modify",
      "old_id": "7b1f24618d97785a3ec1ce3819e9b8a7146eb7f8",
      "old_mode": 33188,
      "old_path": "kernel/trace/trace_functions_graph.c",
      "new_id": "e9df04b60267678a932f1b1cbe6b145d5c989196",
      "new_mode": 33188,
      "new_path": "kernel/trace/trace_functions_graph.c"
    }
  ]
}