cost of kprobe and jprobe operations

[Frank Ch. Eigler]

Hi -


> [...]
> These performance discussions might be more meaningful if 
> we had explicit performance goals for systemtap. [...]
> Any thoughts on defining performance goals for systemtap?

I don't think picking numbers does harm, but I don't know how
much good that does either.  Would we stop-ship a systemtap
implementation that didn't meet the goals?  In the abstract,
should one opt to optimize vs. extend functionality?  Maybe
these questions should be put aside until something runnable
exists as a point of reference, when actual decisions might
need to be made.


- FChE