-XX:[+|-]PrintCodeCache
This Oracle HotSpot option prints the code cache memory usage when the application exits. This option is recognized by Eclipse OpenJ9™ and provided for compatibility.
Syntax
-XX:[+|-]PrintCodeCache
| Setting | Effect | Default |
|---|---|---|
-XX:+PrintCodeCache |
Enable | |
-XX:-PrintCodeCache |
Disable | yes |
As discussed in the Oracle documentation, the code cache usage can be shown when the application exits, by specifying –XX:+PrintCodeCache on the Java launcher command line. The output looks similar to the following:
CodeCache: size=262144Kb used=454Kb max_used=457Kb free=261690Kb
size: The maximum size of the code cache.used: The amount of code cache memory actually in use.max_used: The high water mark for code cache usage.free:sizeminusused.