java native memory
Edit- https://openjdk.java.net/jeps/370
- https://dzone.com/articles/troubleshooting-problems-with-native-off-heap-memo
- https://www.javacodegeeks.com/2016/03/jcmd-one-jdk-command-line-tool-rule.html
DirectByteBuffer
ByteBuffer.allocateDirect()로 할당 받음- 조정 옵션
-Djdk.nio.maxCachedBufferSize-XX:MaxDirectMemorySize
Netty
- https://github.com/netty/netty/blob/4.1/common/src/main/java/io/netty/util/internal/PlatformDependent.java#L192
- Dio.netty.noPreferDirect=true
Linux command
cat /proc/meminfocat /proc/{pid}/status