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kernel / pub / scm / linux / kernel / git / jkacur / trace-cmd / e914e774999519f8a63073ab6a681922743ddbc6
commite914e774999519f8a63073ab6a681922743ddbc6[log] [tgz]
authorAaron Fabbri <ajfabbri@gmail.com>Mon Nov 04 16:51:48 2013 -0800
committerSteven Rostedt <rostedt@goodmis.org>Mon Feb 09 17:50:27 2015 -0500
tree9f33cee626712c6158f95c5c77380f1951f58873
parentcccab4a73984a2ac34c3a2dbec71d44f53fe961d [diff]
trace-cmd: Make read nonblocking in find_time_stamp().

This only affects the tsc -> time of day correlation when doing
`trace-cmd record --date`.

get_date_to_ts() writes a dummy event to trace_marker and then reads it back.
Reading it back is done by looping over all per-cpu raw trace pipes and trying
to read.  This read should be non-blocking, because the dummy event can end up
on any CPU.

Link: http://lkml.kernel.org/r/CAF+KLxuutGDHxzLLaWL-wXsDRyM=4syJcm7wDdEgNxNCpg2TWQ@mail.gmail.com

Signed-off-by: Aaron Fabbri <ajfabbri@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
1 file changed
tree: 9f33cee626712c6158f95c5c77380f1951f58873
  1. Documentation/
  2. .gitattributes
  3. .gitignore
  4. COPYING
  5. COPYING.LIB
  6. cpu.h
  7. ctracecmd.i
  8. ctracecmdgui.i
  9. event-parse.c
  10. event-parse.h
  11. event-utils.h
  12. event-viewer.py
  13. features.mk
  14. kbuffer-parse.c
  15. kbuffer.h
  16. kernel-shark.c
  17. kernel-shark.h
  18. list.h
  19. Makefile
  20. parse-filter.c
  21. parse-utils.c
  22. plugin_blk.c
  23. plugin_cfg80211.c
  24. plugin_function.c
  25. plugin_hrtimer.c
  26. plugin_jbd2.c
  27. plugin_kmem.c
  28. plugin_kvm.c
  29. plugin_mac80211.c
  30. plugin_python.c
  31. plugin_sched_switch.c
  32. plugin_scsi.c
  33. plugin_xen.c
  34. README
  35. trace-blk-hack.c
  36. trace-capture.c
  37. trace-capture.h
  38. trace-cmd-local.h
  39. trace-cmd.c
  40. trace-cmd.h
  41. trace-compat.c
  42. trace-compat.h
  43. trace-dialog.c
  44. trace-filter.c
  45. trace-filter.h
  46. trace-ftrace.c
  47. trace-graph-main.c
  48. trace-graph.c
  49. trace-graph.h
  50. trace-gui.h
  51. trace-hash-local.h
  52. trace-hash.c
  53. trace-hash.h
  54. trace-hist.c
  55. trace-input.c
  56. trace-listen.c
  57. trace-local.h
  58. trace-mem.c
  59. trace-output.c
  60. trace-plot-cpu.c
  61. trace-plot-task.c
  62. trace-plot.c
  63. trace-read.c
  64. trace-record.c
  65. trace-recorder.c
  66. trace-restore.c
  67. trace-seq.c
  68. trace-split.c
  69. trace-stack.c
  70. trace-usage.c
  71. trace-util.c
  72. trace-view-main.c
  73. trace-view-store.c
  74. trace-view-store.h
  75. trace-view.c
  76. trace-view.h
  77. trace-xml.c
  78. trace-xml.h
  79. tracecmd.py
  80. tracecmdgui.py
  81. version.h