Re: Flight recorder mode

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Mathieu Desnoyers wrote:
> * Jan Kiszka ([email protected]) wrote:
>> Hi,
>>
>> I'm trying to understand the flight recorder mode (including the hybri=
d
>> one) of LTTng. I originally expected that this mode means:
>>
>>  1. Fixed set of buffers, older data will be overwritten on wrap-aroun=
d
>>  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?
>>
>=20
> Yep, see the other lttctl options and the quickstart guide to see how t=
o
> spawn one lttd for the "normal" channels and a different one for the
> flight recorder channels (should be done after you stop tracing).

Sorry, /me is too blind: The quickstart guide is not mentioning flight
recorder or hybrid mode, and also lttctl --help gives me no hint what
pattern to apply for achieving limited trace file sizes.

Jan


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