[lttng-dev] Tagging traces with arbitrary data (as in custom metadata)

[David Lindström]

Hi, I was wondering if there’s a way to tag a trace with some additional information. A general example would be to include a description of the current experiment. One way to do this currently would be to create a custom lttng-message application with some UST tracepoint and then just log that to a separate channel, but that would be pretty ugly. It would be much cleaner to insert extra fields into the metadata stream. Is something like that possible in current versions of LTTng and/or would it be possible to add it for a future version?

Mvh
David Lindström
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