Messages in this thread | | | Subject | Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108 | From | (Frank Ch. Eigler) | Date | 15 Sep 2006 18:59:19 -0400 |
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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.
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