[native] Enable monitoring option nmt when jfr monitoring option is enabled

[jerboaa]

Description

Mandrel 25 will add NMT monitoring support. As such, more JFR events would be available if NMT is enabled as well. For example jdk.NativeMemoryUsage et.al. It would be good to enable nmt together with JFR when the user so requests.

Implementation ideas

Check for the native image builder version and add --enable-monitoring=jfr,nmt when JFR is requested provided the added overhead is tolerable.

[jerboaa]

/cc @roberttoyonaga

Robert, any thoughts?

[roberttoyonaga]

The additional overhead of adding NMT should be pretty negligible -especially compared to JFR. I think it's a good idea to do this. I'm working on an issue right now where a user would have benefited from having NMT enabled by default with JFR: oracle/graal#12253