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  * @bug 8013120
  27  * @summary Release committed memory and make sure NMT handles it correctly
  28  * @key nmt regression
  29  * @modules java.base/jdk.internal.misc
  30  * @library /testlibrary /test/lib
  31  * @build ReleaseCommittedMemory
  32  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  33  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
  34  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail ReleaseCommittedMemory
  35  */
  36 
  37 import sun.hotspot.WhiteBox;
  38 
  39 public class ReleaseCommittedMemory {
  40 
  41   public static void main(String args[]) throws Exception {
  42     WhiteBox wb = WhiteBox.getWhiteBox();
  43     long reserveSize = 256 * 1024;
  44     long addr;
  45 
  46     addr = wb.NMTReserveMemory(reserveSize);
  47     wb.NMTCommitMemory(addr, 128*1024);
  48     wb.NMTReleaseMemory(addr, reserveSize);
  49   }
  50 }
  51 

  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  * @bug 8013120
  27  * @summary Release committed memory and make sure NMT handles it correctly
  28  * @key nmt regression
  29  * @modules java.base/jdk.internal.misc
  30  * @library /test/lib
  31  * @build sun.hotspot.WhiteBox
  32  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  33  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
  34  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail ReleaseCommittedMemory
  35  */
  36 
  37 import sun.hotspot.WhiteBox;
  38 
  39 public class ReleaseCommittedMemory {
  40 
  41   public static void main(String args[]) throws Exception {
  42     WhiteBox wb = WhiteBox.getWhiteBox();
  43     long reserveSize = 256 * 1024;
  44     long addr;
  45 
  46     addr = wb.NMTReserveMemory(reserveSize);
  47     wb.NMTCommitMemory(addr, 128*1024);
  48     wb.NMTReleaseMemory(addr, reserveSize);
  49   }
  50 }
  51