Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108

[fche@redhat.com (Frank Ch. Eigler)]

Ingo Molnar <mingo@elte.hu> writes:

> [...]  NOTE: i still accept the temporary (or non-temporary)
> introduction of static markers, to help dynamic tracing. But my
> expectation is that these markers will be less intrusive than static
> tracepoints, and a lot more flexible.

It seems like an agreement on this is coming together.  You and Karim
may be in violent agreement, even if others haven't quite come around:

Let us design a static marker mechanism that can be coupled at run
time either to a dynamic system such as systemtap, or by a specialized
tracing system such as lttnng (!).  Then "markers" === "static
instrumentation", for purposes of the kernel developer.  If the
markers are lightweight enough, then a distribution kernel can afford
keeping them compiled in.


- FChE
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