[JVM] Heap memory size

java -Xms512m -Xmx1024m JavaApp
init: -Xms<size> 
max: -Xmx<size>


if(memory == 32g);

### default
init: 1/64 = 512m
max: 1/4 = 8g
java -Xms512m -Xmx8g JavaApp

### optimize
init: 1/2 = 16g
max: 3/4 = 24g
java -Xms16g -Xmx24g JavaApp

https://mkyong.com/java/find-out-your-java-heap-memory-size/

Find out your Java heap memory size - Mkyong.com