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android / platform / external / trace-cmd / ccba2fa
commitccba2fa362eb43e072ddfd282da127c84bbabd66[log] [tgz]
authorSteven Rostedt (Red Hat) <rostedt@goodmis.org>Wed Dec 17 18:10:34 2014 -0500
committerSteven Rostedt <rostedt@goodmis.org>Mon Jan 05 15:03:59 2015 -0500
tree7d49a482273659ec0bbeb856a0f2b30b857f6a91
parent4d7237668ba4cc4a06f65db08fcb16c2a7144715 [diff]
trace-cmd: Remove lost profile start items when events are lost

If events are lost, then that can cause issues with timings of events
as we can have something like:

	sched_switch(old_task, new_task)

	<lost events>
	sched_wakeup(old_task);
	sched_switch(new_task, old_task);
	sched_switch(old_task, new_task);
	</lost_events>

	sched_wakeup(old_task);

and the wakeup will look lik it was much longer than it actually was.
To prevent this, if lost events were detected, then we need to remove
all the start holders from the current CPU, and also ones that can
migrate.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
3 files changed
tree: 7d49a482273659ec0bbeb856a0f2b30b857f6a91
  1. Documentation/
  2. .gitattributes
  3. .gitignore
  4. bug.h
  5. COPYING
  6. COPYING.LIB
  7. cpu.h
  8. ctracecmd.i
  9. ctracecmdgui.i
  10. event-parse.c
  11. event-parse.h
  12. event-plugin.c
  13. event-utils.h
  14. event-viewer.py
  15. features.mk
  16. kbuffer-parse.c
  17. kbuffer.h
  18. kernel-shark.c
  19. kernel-shark.h
  20. list.h
  21. Makefile
  22. parse-filter.c
  23. parse-utils.c
  24. plugin_blk.c
  25. plugin_cfg80211.c
  26. plugin_function.c
  27. plugin_hrtimer.c
  28. plugin_jbd2.c
  29. plugin_kmem.c
  30. plugin_kvm.c
  31. plugin_mac80211.c
  32. plugin_python.c
  33. plugin_sched_switch.c
  34. plugin_scsi.c
  35. plugin_xen.c
  36. README
  37. trace-blk-hack.c
  38. trace-capture.c
  39. trace-capture.h
  40. trace-cmd-local.h
  41. trace-cmd.c
  42. trace-cmd.h
  43. trace-compat.c
  44. trace-compat.h
  45. trace-dialog.c
  46. trace-filter-hash.c
  47. trace-filter-hash.h
  48. trace-filter.c
  49. trace-filter.h
  50. trace-ftrace.c
  51. trace-graph-main.c
  52. trace-graph.c
  53. trace-graph.h
  54. trace-gui.h
  55. trace-hash-local.h
  56. trace-hash.c
  57. trace-hash.h
  58. trace-hist.c
  59. trace-input.c
  60. trace-listen.c
  61. trace-local.h
  62. trace-mem.c
  63. trace-output.c
  64. trace-plot-cpu.c
  65. trace-plot-task.c
  66. trace-plot.c
  67. trace-profile.c
  68. trace-read.c
  69. trace-record.c
  70. trace-recorder.c
  71. trace-restore.c
  72. trace-seq.c
  73. trace-snapshot.c
  74. trace-split.c
  75. trace-stack.c
  76. trace-stat.c
  77. trace-stream.c
  78. trace-usage.c
  79. trace-util.c
  80. trace-view-main.c
  81. trace-view-store.c
  82. trace-view-store.h
  83. trace-view.c
  84. trace-view.h
  85. trace-xml.c
  86. trace-xml.h
  87. tracecmd.py
  88. tracecmdgui.py
  89. version.h