[verse]
*lttng* ['linkgenoptions:(GENERAL OPTIONS)'] *enable-channel* option:--kernel
- [option:--discard | option:--overwrite] [option:--output=(`mmap` | `splice`)]
+ [option:--overwrite] [option:--output=(`mmap` | `splice`)]
[option:--subbuf-size='SIZE'] [option:--num-subbuf='COUNT']
[option:--switch-timer='PERIODUS'] [option:--read-timer='PERIODUS']
[option:--tracefile-size='SIZE'] [option:--tracefile-count='COUNT']
[verse]
*lttng* ['linkgenoptions:(GENERAL OPTIONS)'] *enable-channel* option:--userspace
- [option:--discard | option:--overwrite] [option:--buffers-pid]
+ [option:--overwrite] [option:--buffers-pid]
[option:--subbuf-size='SIZE'] [option:--num-subbuf='COUNT']
[option:--switch-timer='PERIODUS'] [option:--read-timer='PERIODUS']
[option:--tracefile-size='SIZE'] [option:--tracefile-count='COUNT']
For example, consider this command:
[role="term"]
------------------------------------------------------
-lttng enable-channel --kernel --tracefile-size=4096 \
+----
+$ lttng enable-channel --kernel --tracefile-size=4096 \
--tracefile-count=32 my-channel
------------------------------------------------------
+----
Here, for each stream, the maximum size of each trace file is
4 kiB and there can be a maximum of 32 different files. When there is
Target
~~~~~~
-option:-s, option:--session='SESSION'::
+option:-s 'SESSION', option:--session='SESSION'::
Create or enable channel in the tracing session named 'SESSION'
instead of the current tracing session.