doc/man/lttng-disable-channel.1.txt

   1 lttng-disable-channel(1)
   2 ========================
   3 :revdate: 17 May 2021
   4
   5 NAME
   6 ----
   7 lttng-disable-channel - Disable LTTng channels
   8
   9
  10 SYNOPSIS
  11 --------
  12 [verse]
  13 *lttng* ['linkgenoptions:(GENERAL OPTIONS)'] *disable-channel* (option:--kernel | option:--userspace)
  14       [option:--session='SESSION'] 'CHANNEL'[,'CHANNEL']...
  15
  16
  17 DESCRIPTION
  18 -----------
  19 The `lttng disable-channel` command disables one or more channels
  20 previously enabled with the man:lttng-enable-channel(1) command
  21 which belong to:
  22
  23 With the option:--session='SESSION' option::
  24     The tracing session named 'SESSION'.
  25
  26 Without the option:--session option::
  27     The current tracing session (see man:lttng-concepts(7) to learn more
  28     about the current tracing session).
  29
  30 See man:lttng-concepts(7) to learn more about channels.
  31
  32 The `disable-channel` command disables one channel per 'CHANNEL'
  33 argument.
  34
  35 As of LTTng{nbsp}{lttng_version}, you may :not: enable a disabled
  36 channel once its tracing session has been started (see
  37 man:lttng-start(1)) at least once.
  38
  39 See the ``<<examples,EXAMPLES>>'' section below for usage examples.
  40
  41
  42 include::common-lttng-cmd-options-head.txt[]
  43
  44
  45 Tracing domain
  46 ~~~~~~~~~~~~~~
  47 One of:
  48
  49 option:-k, option:--kernel::
  50     Disable one or more Linux kernel channels.
  51
  52 option:-u, option:--userspace::
  53     Disable one or more user space channels.
  54
  55
  56 Recording target
  57 ~~~~~~~~~~~~~~~~
  58 option:-s 'SESSION', option:--session='SESSION'::
  59     Disable one or more channels of the tracing session named 'SESSION'
  60     instead of the current tracing session.
  61
  62
  63 include::common-lttng-cmd-help-options.txt[]
  64
  65
  66 include::common-lttng-cmd-after-options.txt[]
  67
  68
  69 [[examples]]
  70 EXAMPLES
  71 --------
  72 .Disable one Linux kernel channel of the current tracing session.
  73 ====
  74 [role="term"]
  75 ----
  76 $ lttng disable-channel --kernel my-channel
  77 ----
  78 ====
  79
  80 .Disable two user space channels of a specific tracing session.
  81 ====
  82 See the option:--session option.
  83
  84 [role="term"]
  85 ----
  86 $ lttng disable-channel --kernel --session=my-session \
  87                         little,box
  88 ----
  89 ====
  90
  91
  92 include::common-footer.txt[]
  93
  94
  95 SEE ALSO
  96 --------
  97 man:lttng(1),
  98 man:lttng-enable-channel(1),
  99 man:lttng-concepts(7)