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Hi,
You can start by looking at TMF itself. Some if not most of the LTTng views/widgets are really generic TMF views/widgets that have been extended for LTTng purposes.
For the context-switching et al., we initially simply ported the GTK-based LTTV's State System (the component that handles the processes/resources state transitions based on the events sequence). This State System is really Linux kernel-oriented.
We are now working on a persistent generic State System (a part of TMF itself) that will be re-usable for any type of state management. It should be integrated in the coming months and delivered with Juno. You might want to consider basing your work on this. Constraint: Although the new State System will be trace-format agnostic, for the initial release we are likely to focus on CTF (Common Trace Format) traces.
Don't hesitate to contact us for more details.
Regards,
/fc
On Mon, Jan 23, 2012 at 3:39 AM, Xavier Raynaud
<xavier.raynaud@xxxxxxxxx> wrote:
Hi,
In the coming weeks, I will start to design a GUI to display traces for a massively parallel device.
My first idea was to use TMF for that - and do something similar to the LTT-ng plugin.
For now, this device does not run linux, but the traced event will be very similar (context-switches, interrupts, user events...)
Is there any hint available somewhere, or any trap to avoid ?
Many thanks,
Xavier Raynaud
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Francois
