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 Stress test for malloc tracking
  27  * @key nmt jcmd stress
  28  * @library /testlibrary /test/lib
  29  * @modules java.base/jdk.internal.misc
  30  *          java.management
  31  * @build MallocStressTest
  32  * @ignore - This test is disabled since it will stress NMT and timeout during normal testing
  33  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  34  * @run main/othervm/timeout=600 -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail MallocStressTest
  35  */
  36 
  37 import java.util.concurrent.atomic.AtomicInteger;
  38 import java.util.ArrayList;
  39 import java.util.List;
  40 import java.util.Random;
  41 import jdk.test.lib.*;

  42 import sun.hotspot.WhiteBox;
  43 
  44 public class MallocStressTest {
  45     private static int K = 1024;
  46 
  47     // The stress test runs in three phases:
  48     // 1. alloc: A lot of malloc with fewer free, which simulates a burst memory allocation
  49     //    that is usually seen during startup or class loading.
  50     // 2. pause: Pause the test to check accuracy of native memory tracking
  51     // 3. release: Release all malloc'd memory and check native memory tracking result.
  52     public enum TestPhase {
  53         alloc,
  54         pause,
  55         release
  56     };
  57 
  58     static TestPhase phase = TestPhase.alloc;
  59 
  60     // malloc'd memory
  61     static ArrayList<MallocMemory>  mallocd_memory = new ArrayList<MallocMemory>();

   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 Stress test for malloc tracking
  27  * @key nmt jcmd stress
  28  * @library /test/lib
  29  * @modules java.base/jdk.internal.misc
  30  *          java.management
  31  * @build sun.hotspot.WhiteBox
  32  * @ignore - This test is disabled since it will stress NMT and timeout during normal testing
  33  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  34  * @run main/othervm/timeout=600 -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail MallocStressTest
  35  */
  36 
  37 import java.util.concurrent.atomic.AtomicInteger;
  38 import java.util.ArrayList;
  39 import java.util.List;
  40 import java.util.Random;
  41 import jdk.test.lib.process.ProcessTools;
  42 import jdk.test.lib.process.OutputAnalyzer;
  43 import sun.hotspot.WhiteBox;
  44 
  45 public class MallocStressTest {
  46     private static int K = 1024;
  47 
  48     // The stress test runs in three phases:
  49     // 1. alloc: A lot of malloc with fewer free, which simulates a burst memory allocation
  50     //    that is usually seen during startup or class loading.
  51     // 2. pause: Pause the test to check accuracy of native memory tracking
  52     // 3. release: Release all malloc'd memory and check native memory tracking result.
  53     public enum TestPhase {
  54         alloc,
  55         pause,
  56         release
  57     };
  58 
  59     static TestPhase phase = TestPhase.alloc;
  60 
  61     // malloc'd memory
  62     static ArrayList<MallocMemory>  mallocd_memory = new ArrayList<MallocMemory>();