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Re: [tracecompass-dev] Viewing custom events in a timeline

Hi Geraldo,

That sounds like a great feature. I would suggest that you have two
courses of action for it, in trace compass.

1- make a state system in java and feed a time graph view
2- make the state system in xml. Data driven will be probably easier.

Can you show what your events look like? Are they something like this? 
time: abc, type: start, stream: n;

Are they in text? binary or other(?)

You could probably make a parser easily enough for your data format.

Hope to hear from you!


On 15-07-23 04:19 AM, Gerlando Falauto wrote:
> Hi,
> I am currently trying to analyze the behavior and performance of a
> system under different configurations and circumstances.
> What I have is a series of events (start/stop) relative to several
> (~200) separate "entities" which I would like to see plotted in a
> timeline: Kind of like the timeline you see on the "Network" tab of
> the Developer Tools under Firefox, where you see how long each HTTP
> request lasts and how it overlaps with the others.
> Or like the "Control Flow" view in Tracecompass, except each row is
> *NOT* a linux process/thread, rather an internal "entity". So the data
> shall not come from LTTNG traces, rather from external, custom data.
> I suppose I could either:
> a) post-process a log file (by writing some translation script), so to
> generate some CTF trace, "faking" processes with my own entities, or
> b) instrument the code itself so to generate LTTNG-UST events.
> Any ideas how I could achieve this? Just some hint on where to start...
> Thank you so much!
> Gerlando
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