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test/runtime/memory/ReadVMPageSize.java

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   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @summary Using WhiteBox to get VM page size
  27  * @modules java.base/jdk.internal.misc
  28  * @library /testlibrary /test/lib
  29  * @build ReadVMPageSize
  30  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  31  * @run main/othervm  -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI  ReadVMPageSize
  32  */
  33 
  34 import jdk.test.lib.*;
  35 import sun.hotspot.WhiteBox;
  36 
  37 public class ReadVMPageSize {
  38   public static void main(String args[]) throws Exception {
  39     WhiteBox wb = WhiteBox.getWhiteBox();
  40     int pageSize = wb.getVMPageSize();
  41     if (pageSize < 0) {
  42       throw new Exception("pageSize < 0");
  43     } else {
  44       System.out.println("Page size = " + pageSize);
  45     }
  46   }
  47 }


   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @summary Using WhiteBox to get VM page size
  27  * @modules java.base/jdk.internal.misc
  28  * @library /test/lib
  29  * @build sun.hotspot.WhiteBox
  30  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  31  * @run main/othervm  -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI  ReadVMPageSize
  32  */
  33 

  34 import sun.hotspot.WhiteBox;
  35 
  36 public class ReadVMPageSize {
  37   public static void main(String args[]) throws Exception {
  38     WhiteBox wb = WhiteBox.getWhiteBox();
  39     int pageSize = wb.getVMPageSize();
  40     if (pageSize < 0) {
  41       throw new Exception("pageSize < 0");
  42     } else {
  43       System.out.println("Page size = " + pageSize);
  44     }
  45   }
  46 }
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