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javaintellij-ideajvmheap-memoryjvm-arguments

Configure initial heap size for java 8 VM

I try to set initial application memory heap size to 2gb for java 8 VM. I add -Xms2g -Xmx2g in Program Arguments section of IntelliJ.

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Then I start my application and see that the heap size is less than 1gb. enter image description here

What do I miss?

Solution

  • The "Program arguments" are the arguments passed to your main method, not to Java itself. Move these arguments to the "VM options" box.