JVM Properties in WIndows heap min and max size

On Windows :::

C:\>java -XX:+PrintFlagsFinal -version | findstr /i "HeapSize PermSize ThreadStackSize"

    uintx InitialHeapSize                          := 266634176       {product}

    uintx MaxHeapSize                              := 4267704320      {product}

    uintx PermSize                                  = 21757952        {pd product}

    uintx MaxPermSize                               = 85983232        {pd product}

     intx ThreadStackSize                           = 0               {pd product}

java version "1.7.0_40"

Java(TM) SE Runtime Environment (build 1.7.0_40-b43)

Java HotSpot(TM) 64-Bit Server VM (build 24.0-b56, mixed mode)

On Linux:::

java -XX:+PrintFlagsFinal -version | grep -iE 'HeapSize|PermSize|ThreadStackSize'

    uintx InitialHeapSize                          := 64781184        {product}

    uintx MaxHeapSize                              := 1038090240      {product}

    uintx PermSize                                  = 21757952        {pd product}

    uintx MaxPermSize                               = 174063616       {pd product}

     intx ThreadStackSize                           = 1024            {pd product}

java version "1.7.0_51"

OpenJDK Runtime Environment (IcedTea 2.4.4) (7u51-2.4.4-0ubuntu0.13.10.1)

OpenJDK 64-Bit Server VM (build 24.45-b08, mixed mode)