It would be very helpful if these flushing messages [1] included more information, for instance: if the nmethod is cold, is it from a JVMCI compilation? which compilation level is the nmethod for, etc.

[1] https://github.com/openjdk/jdk/blob/fdda7661906eab63d939e9f482449e21cc143c8f/src/hotspot/share/code/nmethod.cpp#L2144