Here is a list of JVM sizing options:
| Sizing description | JVM option flag |
| Sets the initial heap size (young space plus tenured space). |
-XX:InitialHeapSize=3g |
| Sets the maximum heap size (young space plus tenured space). | -XX:MaxHeapSize=3g |
| Sets the initial and maximum heap size (young space plus tenured space). | -Xms2048m -Xmx3g |
| Sets the initial size of young space. | -XX:NewSize=128m |
| Sets the maximum size of young space. | -XX:MaxNewSize=128m |
| Sets young space size. Uses ration of young verses tenured space. In the sample flag to the right, 3 means that young space will be three times smaller than tenured space. | -XX:NewRation=3 |
| Sets the size of single survivor space as a portion of Eden space size. |
