Messages in this thread | | | Date | Tue, 19 Sep 2006 15:36:24 -0400 | From | Mathieu Desnoyers <> | Subject | Re: [PATCH] Linux Kernel Markers 0.2 for Linux 2.6.17 |
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* Frank Ch. Eigler (fche@redhat.com) wrote: > If you don't allow yourself to presume on-the-fly function > recompilation, then these markers would need to be made run-time > rather than compile-time configurable. That is, not like this: > > > +/* Menu configured markers */ > > +#ifndef CONFIG_MARK > > +#define MARK MARK_INACTIVE > > +#elif defined(CONFIG_MARK_PRINT) > > +#define MARK MARK_PRINT > > +#elif defined(CONFIG_MARK_FPROBE) > > +#define MARK MARK_FPROBE > > +#elif defined(CONFIG_MARK_KPROBE) > > +#define MARK MARK_KPROBE > > +#elif defined(CONFIG_MARK_JPROBE) > > +#define MARK MARK_JPROBE > > +#endif
By making them run-time configurable, I don't see any whay not to bloat the kernel. How can be embed calls to printk+function+kprobe+djprobe without having some kind of performance impact ?
Do you have any suggestion for this ? (or maybe am I missing your point ?)
Mathieu
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