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test/gc/g1/TestHumongousAllocInitialMark.java

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  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 /testlibrary
  29  * @modules java.base/sun.misc
  30  *          java.management
  31  */
  32 
  33 import com.oracle.java.testlibrary.*;
  34 
  35 public class TestHumongousAllocInitialMark {
  36     // Heap sizes < 224 MB are increased to 224 MB if vm_page_size == 64K to
  37     // fulfill alignment constraints.
  38     private static final int heapSize                       = 224; // MB
  39     private static final int heapRegionSize                 = 1;   // MB
  40     private static final int initiatingHeapOccupancyPercent = 50;  // %
  41 
  42     public static void main(String[] args) throws Exception {
  43         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  44             "-XX:+UseG1GC",
  45             "-Xms" + heapSize + "m",
  46             "-Xmx" + heapSize + "m",
  47             "-XX:G1HeapRegionSize=" + heapRegionSize + "m",
  48             "-XX:InitiatingHeapOccupancyPercent=" + initiatingHeapOccupancyPercent,
  49             "-XX:+PrintGC",
  50             HumongousObjectAllocator.class.getName());
  51 
  52         OutputAnalyzer output = new OutputAnalyzer(pb.start());
  53         output.shouldContain("GC pause (G1 Humongous Allocation) (young) (initial-mark)");




  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 /testlibrary
  29  * @modules java.base/sun.misc
  30  *          java.management
  31  */
  32 
  33 import jdk.test.lib.*;
  34 
  35 public class TestHumongousAllocInitialMark {
  36     // Heap sizes < 224 MB are increased to 224 MB if vm_page_size == 64K to
  37     // fulfill alignment constraints.
  38     private static final int heapSize                       = 224; // MB
  39     private static final int heapRegionSize                 = 1;   // MB
  40     private static final int initiatingHeapOccupancyPercent = 50;  // %
  41 
  42     public static void main(String[] args) throws Exception {
  43         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  44             "-XX:+UseG1GC",
  45             "-Xms" + heapSize + "m",
  46             "-Xmx" + heapSize + "m",
  47             "-XX:G1HeapRegionSize=" + heapRegionSize + "m",
  48             "-XX:InitiatingHeapOccupancyPercent=" + initiatingHeapOccupancyPercent,
  49             "-XX:+PrintGC",
  50             HumongousObjectAllocator.class.getName());
  51 
  52         OutputAnalyzer output = new OutputAnalyzer(pb.start());
  53         output.shouldContain("GC pause (G1 Humongous Allocation) (young) (initial-mark)");


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