Tracking vm activity

[Jun Koi]

Hi Frank,

> > Ah, the thread-id idea is clear to me. But may you explain a little
> > bit about the "nesting level"??
>
> Certainly.  The nesting level is a per-thread counter.  It is
> incremented on a probed function entry and decremented upon its
> return.  It is used as an additional index to saved function
> parameters by.  This way, if a recursive function is encountered, we
> can find the innermost parameters without losing the outer ones.
>

It is all clear now. Thanks, Frank :-)

Best,
Jun