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 TestHumongousAllocInitialMark
  26  * @bug 7168848
  27  * @summary G1: humongous object allocations should initiate marking cycles when necessary

  28  * @library /test/lib
  29  * @modules java.base/jdk.internal.misc
  30  *          java.management
  31  */
  32 
  33 import jdk.test.lib.process.OutputAnalyzer;
  34 import jdk.test.lib.process.ProcessTools;
  35 
  36 public class TestHumongousAllocInitialMark {
  37     // Heap sizes < 224 MB are increased to 224 MB if vm_page_size == 64K to
  38     // fulfill alignment constraints.
  39     private static final int heapSize                       = 224; // MB
  40     private static final int heapRegionSize                 = 1;   // MB
  41     private static final int initiatingHeapOccupancyPercent = 50;  // %
  42 
  43     public static void main(String[] args) throws Exception {
  44         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  45             "-XX:+UseG1GC",
  46             "-Xms" + heapSize + "m",
  47             "-Xmx" + heapSize + "m",

   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 TestHumongousAllocInitialMark
  26  * @bug 7168848
  27  * @summary G1: humongous object allocations should initiate marking cycles when necessary
  28  * @requires vm.gc.G1
  29  * @library /test/lib
  30  * @modules java.base/jdk.internal.misc
  31  *          java.management
  32  */
  33 
  34 import jdk.test.lib.process.OutputAnalyzer;
  35 import jdk.test.lib.process.ProcessTools;
  36 
  37 public class TestHumongousAllocInitialMark {
  38     // Heap sizes < 224 MB are increased to 224 MB if vm_page_size == 64K to
  39     // fulfill alignment constraints.
  40     private static final int heapSize                       = 224; // MB
  41     private static final int heapRegionSize                 = 1;   // MB
  42     private static final int initiatingHeapOccupancyPercent = 50;  // %
  43 
  44     public static void main(String[] args) throws Exception {
  45         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  46             "-XX:+UseG1GC",
  47             "-Xms" + heapSize + "m",
  48             "-Xmx" + heapSize + "m",