[lttng-dev] [RFC] LTTng-UST loglevels

[Matthew Khouzam]

Two use cases I see for per-line logging:
(forgive my pseudocode)

func()
{
stuff();
stuff(); tracepoint(mytrace);
(morestuff()++)->my_func();
}


or if you have a 100+ line function and you want to see it arrive at
certain checkpoints.



On 12-02-13 02:35 PM, Michel Dagenais wrote:
>>>         TRACE_DEBUG_SYSTEM      = 7,
>>>         TRACE_DEBUG_PROGRAM     = 8,
>>>         TRACE_DEBUG_PROCESS     = 9,
>>>         TRACE_DEBUG_MODULE      = 10,
>>>         TRACE_DEBUG_UNIT        = 11,
>>>         TRACE_DEBUG_FUNCTION    = 12,
>>>         TRACE_DEBUG_LINE        = 13,
>>>
>>>
>> I still don't understand how we should choose to use any of the
>> TRACE_DEBUG levels.
> I would guess that you start at level 7 for everywhere to discover which program is problematic, then you enable level 8 for the problematic program and find the offending process, and so on to dig into a problem up to the "line" level. I would not expect tracepoints at the line level... though.
>
> _______________________________________________
> lttng-dev mailing list
> lttng-dev at lists.lttng.org
> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev