I am trying to add a thread timestamp to trace events. By thread timestamp I mean the value returned by clock_gettime(CLOCK_THREAD_CPUTIME_ID): https://linux.die.net/man/3/clock_gettime
I could do this by creating custom events, but I am wondering if there is already a way to add this information to event context. I have tried using the following arguments to lttng-add-context, but none of them add any additional information: perf:cpu:cpu-cycles perf:cpu:cycles perf:thread:cpu-cycles perf:thread:cycles Note that I have only enabled userspace events. I use the following sequence of commands to capture trace: lttng create lttng enable-event --userspace --all lttng add-context --userspace -t vpid -t vtid -t perf:thread:cycles lttng start lttng stop
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