GSoC Project | Basic Support for Trace Compass

Sebastian Huber sebastian.huber at
Mon Jul 22 09:02:37 UTC 2019

On 22/07/2019 10:48, Ravindra Kumar Meena wrote:
>     You have to figure out what these values mean. You may also ask the
>     LTTNG mailing list.
> Okay.
> On writing to the stream file there are two possible problems:
> 1. In the second step writing to the stream file might not write to the 
> corresponding binary stream file because the item->cpu can also change.
> e.g if prev_comm is of cpu_id=4 then ther nex_comm might be of cpu_id =5 
> and it will write the content to the event_5 binary stream file.
> 2. There will be two timestamp value one for prev_comm and another one 
> for next_comm. Not sure which to write in the binary stream file.

You have to maintain this information per CPU.

Sebastian Huber, embedded brains GmbH

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