Some newbie questions

[Frank Ch. Eigler]

Avi Kivity <avi@scylladb.com> writes:

> [...]
> I'm surprised this didn't come up before.  Trying to find out why a
> function which is usually fast and very rarely slow seems to be a good
> fit for systemtap.

Like this?
https://sourceware.org/systemtap/examples/#profiling/fntimes.stp

Note though that such analysis probably cannot be performed based only
upon PC samples - or even backtrace samples.  We seem to require
trapping individual function entry/exit events.

- FChE