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mingo 39aeb52f99 perf sched: Add support for sched:sched_stat_runtime events 
This allows more precise 'perf sched latency' output:

 ---------------------------------------------------------------------------------------
  Task                  |  Runtime ms | Switches | Average delay ms | Maximum delay ms |
 ---------------------------------------------------------------------------------------
  ksoftirqd/0-4         |    0.010 ms |        2 | avg:    2.476 ms | max:    2.977 ms |
  perf-12328            |   15.844 ms |       66 | avg:    1.118 ms | max:    9.979 ms |
  bdi-default-235       |    0.009 ms |        1 | avg:    0.998 ms | max:    0.998 ms |
  events/1-8            |    0.020 ms |        2 | avg:    0.998 ms | max:    0.998 ms |
  events/0-7            |    0.018 ms |        2 | avg:    0.992 ms | max:    0.996 ms |
  sleep-12329           |    0.742 ms |        3 | avg:    0.906 ms | max:    2.289 ms |
  sshd-12122            |    0.163 ms |        2 | avg:    0.283 ms | max:    0.562 ms |
  loop-getpid-lon-12322 | 1023.636 ms |       69 | avg:    0.208 ms | max:    5.996 ms |
  loop-getpid-lon-12321 | 1038.638 ms |        5 | avg:    0.073 ms | max:    0.171 ms |
  migration/1-5         |    0.000 ms |        1 | avg:    0.006 ms | max:    0.006 ms |
 ---------------------------------------------------------------------------------------
  TOTAL:                | 2079.078 ms |      153 |
 -------------------------------------------------

Also, streamline the code a bit more, add asserts for various state
machine failures (they should be debugged if they occur) and fix
a few odd ends.

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-14 20:08:23 +02:00
..
Documentation perf sched: Add 'perf sched trace', improve documentation 2009-09-13 17:55:23 +02:00
util perf tools: Implement counter output multiplexing 2009-09-14 15:45:11 +02:00
.gitignore perf_counter tools: Move from Documentation/perf_counter/ to tools/perf/ 2009-06-06 20:33:43 +02:00
builtin-annotate.c perf tools: Librarize idle thread registration 2009-08-31 10:04:48 +02:00
builtin-help.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
builtin-list.c perf list: Fix large list output by using the pager 2009-08-13 09:05:48 +02:00
builtin-record.c perf tools: Implement counter output multiplexing 2009-09-14 15:45:11 +02:00
builtin-report.c perf tools: Librarize idle thread registration 2009-08-31 10:04:48 +02:00
builtin-sched.c perf sched: Add support for sched:sched_stat_runtime events 2009-09-14 20:08:23 +02:00
builtin-stat.c perf stat: Clean up statistics calculations a bit more 2009-09-04 20:27:26 +02:00
builtin-top.c perf top: Show RIP only in verbose mode 2009-08-26 20:21:45 +02:00
builtin-trace.c perf trace: Fix parsing of perf.data 2009-09-03 16:19:57 +02:00
builtin.h perf: Add 'perf sched' tool 2009-09-13 10:22:36 +02:00
command-list.txt perf: Add 'perf sched' tool 2009-09-13 10:22:36 +02:00
CREDITS perf_counter tools: Add CREDITS file for Git contributors 2009-06-24 19:54:29 +02:00
design.txt perf_counter: Start documenting HAVE_PERF_COUNTERS requirements 2009-06-12 19:37:30 +02:00
Makefile perf: Add 'perf sched' tool 2009-09-13 10:22:36 +02:00
perf.c perf: Add 'perf sched' tool 2009-09-13 10:22:36 +02:00
perf.h perf tools: Librarize trace_event() helper 2009-08-16 23:06:45 +02:00