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

[Ingo Molnar]

* Roman Zippel <zippel@xxxxxxxxxxxxxx> wrote:

> [...] It would also add virtually no maintainance overhead as you like 
> to claim - how often does this function change?

as i said, roughly half of the tracepoints are like this - and some of 
them in functions in frequented places. That's far from "virtually no 
maintainance overhead". In the -rt tree i have never more than a dozen 
static tracepoints, yet even this small amount caused at least 5 extra 
-rt tree iterations due to various breakages (build problems or even 
crashes). Cruft comes in small steps, and my worry is that such 
_unremovable_ markups will be cruft that never shrinks. With dynamic 
tracers i see the _chance_ for cruft to shift to places where it does 
not hurt, if that cruft turns out to become a hindrance.

	Ingo
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/