title: set JVM heap size to be atleast 8GB
body: <p>I want to set the JVM heap size to be atleast 8GB. Can I do that with below configuration? I see that the max heap size is 4GB from the command below and I am not sure how to set it to 8GB?</p>
  
  <pre><code>java -XX:+PrintFlagsFinal -version | grep -iE 'HeapSize|PermSize|ThreadStackSize'
       intx CompilerThreadStackSize                   = 0                                   {pd product}
      uintx ErgoHeapSizeLimit                         = 0                                   {product}
      uintx HeapSizePerGCThread                       = 87241520                            {product}
      uintx InitialHeapSize                          := 264241152                           {product}
      uintx LargePageHeapSizeThreshold                = 134217728                           {product}
      uintx MaxHeapSize                              := 4206886912                          {product}
       intx ThreadStackSize                           = 1024                                {pd product}
       intx VMThreadStackSize                         = 1024                                {pd product}
  </code></pre>