changeset 24667:38c5d155aee9

8040250: The test test/gc/parallelScavenge/TestDynShrinkHeap.java fails with OOME Reviewed-by: jmasa, iignatyev Contributed-by: dmitry.fazunenko@oracle.com
author iignatyev
date Mon, 26 May 2014 19:21:01 +0400
parents a7a8e70f1bf7
children 26512f82f5d9 5fc47eabda8b
files hotspot/test/gc/parallelScavenge/TestDynShrinkHeap.java
diffstat 1 files changed, 5 insertions(+), 5 deletions(-) [+]
line wrap: on
line diff
--- a/hotspot/test/gc/parallelScavenge/TestDynShrinkHeap.java	Mon May 26 09:31:43 2014 +0200
+++ b/hotspot/test/gc/parallelScavenge/TestDynShrinkHeap.java	Mon May 26 19:21:01 2014 +0400
@@ -26,7 +26,7 @@
  * @bug 8016479
  * @summary Verify that the heap shrinks after full GC according to the current values of the Min/MaxHeapFreeRatio flags
  * @library /testlibrary
- * @run main/othervm -XX:+UseAdaptiveSizePolicyWithSystemGC -XX:+UseParallelGC -XX:MinHeapFreeRatio=0 -XX:MaxHeapFreeRatio=100 -verbose:gc TestDynShrinkHeap
+ * @run main/othervm -XX:+UseAdaptiveSizePolicyWithSystemGC -XX:+UseParallelGC -XX:MinHeapFreeRatio=0 -XX:MaxHeapFreeRatio=100 -Xmx1g -verbose:gc TestDynShrinkHeap
  */
 import com.oracle.java.testlibrary.DynamicVMOption;
 import java.lang.management.ManagementFactory;
@@ -41,7 +41,7 @@
     public static final String MAX_FREE_RATIO_FLAG_NAME = "MaxHeapFreeRatio";
 
     private static ArrayList<byte[]> list = new ArrayList<>(0);
-    private static final int M = 1024 * 1024; // to make heap more manageable by test code
+    private static final int LEN = 512 * 1024 + 1;
 
     public TestDynShrinkHeap() {
     }
@@ -69,12 +69,12 @@
     }
 
     private void eat() {
-        for (int i = 0; i < M; i++) {
+        for (int i = 0; i < LEN; i++) {
             list.add(new byte[1024]);
         }
-        MemoryUsagePrinter.printMemoryUsage("allocated " + M + " arrays");
+        MemoryUsagePrinter.printMemoryUsage("allocated " + LEN + " arrays");
 
-        list.subList(0, M / 2).clear();
+        list.subList(0, LEN / 2).clear();
         System.gc();
         MemoryUsagePrinter.printMemoryUsage("array halved");
     }