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 TestHumongousShrinkHeap
26 * @bug 8036025 8056043
27 * @requires vm.gc.G1
28 * @summary Verify that heap shrinks after GC in the presence of fragmentation
29 * due to humongous objects
30 * @library /testlibrary
31 * @modules java.base/jdk.internal.misc
32 * @modules java.management/sun.management
33 * @run main/othervm -XX:-ExplicitGCInvokesConcurrent -XX:MinHeapFreeRatio=10
34 * -XX:MaxHeapFreeRatio=12 -XX:+UseG1GC -XX:G1HeapRegionSize=1M -verbose:gc
35 * TestHumongousShrinkHeap
36 */
37
38 import com.sun.management.HotSpotDiagnosticMXBean;
39 import java.lang.management.ManagementFactory;
40 import java.lang.management.MemoryUsage;
41 import java.util.ArrayList;
42 import java.util.List;
43 import static jdk.test.lib.Asserts.*;
44
45 public class TestHumongousShrinkHeap {
46
47 public static final String MIN_FREE_RATIO_FLAG_NAME = "MinHeapFreeRatio";
48 public static final String MAX_FREE_RATIO_FLAG_NAME = "MaxHeapFreeRatio";
49
50 private static final List<List<byte[]>> garbage = new ArrayList();
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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 TestHumongousShrinkHeap
26 * @bug 8036025 8056043
27 * @requires vm.gc.G1
28 * @summary Verify that heap shrinks after GC in the presence of fragmentation
29 * due to humongous objects
30 * @library /test/lib
31 * @modules java.base/jdk.internal.misc
32 * @modules java.management/sun.management
33 * @run main/othervm -XX:-ExplicitGCInvokesConcurrent -XX:MinHeapFreeRatio=10
34 * -XX:MaxHeapFreeRatio=12 -XX:+UseG1GC -XX:G1HeapRegionSize=1M -verbose:gc
35 * TestHumongousShrinkHeap
36 */
37
38 import com.sun.management.HotSpotDiagnosticMXBean;
39 import java.lang.management.ManagementFactory;
40 import java.lang.management.MemoryUsage;
41 import java.util.ArrayList;
42 import java.util.List;
43 import static jdk.test.lib.Asserts.*;
44
45 public class TestHumongousShrinkHeap {
46
47 public static final String MIN_FREE_RATIO_FLAG_NAME = "MinHeapFreeRatio";
48 public static final String MAX_FREE_RATIO_FLAG_NAME = "MaxHeapFreeRatio";
49
50 private static final List<List<byte[]>> garbage = new ArrayList();
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