How can I prepare for questions about non-heap memory in a Java interview?

jvm.memory.non_heap.max. type: long. format: bytes. The maximum amount of non-heap memory in bytes that can be used for memory management. If the maximum ... Feb 2, 2015 ... Try pmap or /proc/[pid]/smaps to found which jar/lib/stack/file might using much memory..then use gdb to watch content of blocks to help our analysis. ... heap-based or direct buffer. Specified by: allocateBuffer in ... Indicates whether this factory allocates direct buffers (i.e. non-heap, native memory). Jul 27, 2023 ... Metaspace. The non-heap space is used by the JVM to store metadata and class definitions. It is also known as the permanent generation (PermGen) ... Jun 8, 2024 ... In some languages, any non- null value may imply an allocation because every "present value" is a heap allocation (or at least potentially auto- ... Oct 2, 2019 ... You can also compare your physical server's system-level memory usage with JVM heap and non-heap usage by graphing these metrics on the same ... Jul 27, 2023 ... Metaspace. The non-heap space is used by the JVM to store metadata and class definitions. It is also known as the permanent generation (PermGen) ... Oct 25, 2015 ... The permgen is where in Java 7 and older class definitions and other things are loaded. We probably should just remove max for non-Heap as I'm not sure the ... Oct 28, 2023 ... The driver's used (%) non-heap memory during the job run. This helps to understand memory usage trends, especially over time, which can help ... Oct 24, 2004 ... ... non-heap memory areas. As a result, RTSJ programmers must manage non-heap memory explicitly. Although that's a common practice in real ...