Messages in this thread | | | Subject | Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108 | From | Richard J Moore <> | Date | Fri, 15 Sep 2006 10:17:24 +0100 |
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Ingo Molnar wrote:
> > I don't think anyone is saying that static tracepoints do not have > > their limitations, or that dynamic tracepointing is useless. But > > that's not the point ... why can't we have one infrastructure that > > supports both? Preferably in a fairly simple, consistent way. > > primarily because i fail to see any property of static tracers that are > not met by dynamic tracers. So to me dynamic tracers like SystemTap are > a superset of static tracers.
There is one example whethere dynamic tracing is difficult or very messy to implement and that's for tracepoints needed during system and device initialization. In this sense dynamic is not a practical superset of static. However I believe the tooling, for dynamic trace should work for static as well.
- - Richard J Moore IBM Advanced Linux Response Team - Linux Technology Centre MOBEX: 264807; Mobile (+44) (0)7739-875237 Office: (+44) (0)1962-817072
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