On Fri, 23 Jan 2026 16:25:31 +0100
Tomas Glozar [off-list ref] wrote:

To enable RTLA to analyze samples consistently, the first patch adds two fields
to the osnoise:timerlat_sample tracepoint: instances_registered and
instances_on. During the recording of a timerlat sample, timerlat counts
how many instances are registered and how many are on, and attaches
the information to the osnoise:timerlat_sample trace event, which is moved
to occur after the samples are recorded.

Can't RTLA simply write into trace_marker or trace_marker_raw an event
that states "tracing is now active" and ignore anything before that event.

Heck, it will include a timestamp, so you only need to write once and
ignore any event that occurred before that timestamp.

-- Steve