Re: Flight recorder mode

* Jan Kiszka ([email protected]) wrote:
> Hi,
> 
> I'm trying to understand the flight recorder mode (including the hybrid
> one) of LTTng. I originally expected that this mode means:
> 
>  1. Fixed set of buffers, older data will be overwritten on wrap-around
>  2. Limited size of trace files
> 
> While 1. seems to be true, 2. is neither what I observe in the output
> directory (flight-cpu_* get larger and larger) nor what I can find in
> lttd's code. Intentionally?
> 

Yep, see the other lttctl options and the quickstart guide to see how to
spawn one lttd for the "normal" channels and a different one for the
flight recorder channels (should be done after you stop tracing).

Mathieu

> Jan
> 
> -- 
> Siemens AG, Corporate Technology, CT SE 2
> Corporate Competence Center Embedded Linux
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-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
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