[lttng-dev] Merge two LTTng CTF traces into one

[Matthew Khouzam]

Michel has hit the nail on the head there.

I would just like to add that one can export an experiment in trace
compass. This means that the two traces are shipped in a zip with the
synchronization. You can also apply a constant clock offset if network
events are unavailable. If you really really want to make a CTF trace as
an output, perhaps look at the python bound babeltrace?

BR

Matthew


On 14-12-22 08:07 AM, Michel Dagenais wrote:
> Normally, the two traces are stored separately and they are "merged"
> at display time in TraceCompass. If they were taken on the same host,
> they use the same clock and should be naturally aligned. If they come
> from different hosts and you want very fine symchronization, you need
> some communication events from which to synchronize the traces. TCP
> packet send and receive events are typically used. If you want to look
> at two traces simultaneously, it normally implies that the two are
> related, the two nodes communicating through the network.
>
> ------------------------------------------------------------------------
>
>     Hi,
>
>     Is there any way to merge the two CTF traces and see them in one
>     with trace synchronization ? 
>
>     How it is related to trace synchronization using network events ? 
>
>
>     Thanks,
>     Divya
>
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