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test/gc/g1/TestShrinkAuxiliaryData.java

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  35 import java.util.Arrays;
  36 import java.util.Collections;
  37 import java.util.LinkedList;
  38 import java.util.List;
  39 import jdk.internal.misc.Unsafe; // for ADDRESS_SIZE
  40 import sun.hotspot.WhiteBox;
  41 
  42 public class TestShrinkAuxiliaryData {
  43 
  44     private static final int REGION_SIZE = 1024 * 1024;
  45 
  46     private final static String[] initialOpts = new String[]{
  47         "-XX:MinHeapFreeRatio=10",
  48         "-XX:MaxHeapFreeRatio=11",
  49         "-XX:+UseG1GC",
  50         "-XX:G1HeapRegionSize=" + REGION_SIZE,
  51         "-XX:-ExplicitGCInvokesConcurrent",
  52         "-Xlog:gc=debug",
  53         "-XX:+UnlockDiagnosticVMOptions",
  54         "-XX:+WhiteBoxAPI",
  55         "-XaddExports:java.base/jdk.internal.misc=ALL-UNNAMED",
  56         "-Xbootclasspath/a:.",
  57     };
  58 
  59     private final int hotCardTableSize;
  60 
  61     protected TestShrinkAuxiliaryData(int hotCardTableSize) {
  62         this.hotCardTableSize = hotCardTableSize;
  63     }
  64 
  65     protected void test() throws Exception {
  66         ArrayList<String> vmOpts = new ArrayList();
  67         Collections.addAll(vmOpts, initialOpts);
  68 
  69         int maxCacheSize = Math.max(0, Math.min(31, getMaxCacheSize()));
  70         if (maxCacheSize < hotCardTableSize) {
  71             System.out.format("Skiping test for %d cache size due max cache size %d",
  72                     hotCardTableSize, maxCacheSize
  73             );
  74             return;
  75         }




  35 import java.util.Arrays;
  36 import java.util.Collections;
  37 import java.util.LinkedList;
  38 import java.util.List;
  39 import jdk.internal.misc.Unsafe; // for ADDRESS_SIZE
  40 import sun.hotspot.WhiteBox;
  41 
  42 public class TestShrinkAuxiliaryData {
  43 
  44     private static final int REGION_SIZE = 1024 * 1024;
  45 
  46     private final static String[] initialOpts = new String[]{
  47         "-XX:MinHeapFreeRatio=10",
  48         "-XX:MaxHeapFreeRatio=11",
  49         "-XX:+UseG1GC",
  50         "-XX:G1HeapRegionSize=" + REGION_SIZE,
  51         "-XX:-ExplicitGCInvokesConcurrent",
  52         "-Xlog:gc=debug",
  53         "-XX:+UnlockDiagnosticVMOptions",
  54         "-XX:+WhiteBoxAPI",
  55         "--add-exports=java.base/jdk.internal.misc=ALL-UNNAMED",
  56         "-Xbootclasspath/a:.",
  57     };
  58 
  59     private final int hotCardTableSize;
  60 
  61     protected TestShrinkAuxiliaryData(int hotCardTableSize) {
  62         this.hotCardTableSize = hotCardTableSize;
  63     }
  64 
  65     protected void test() throws Exception {
  66         ArrayList<String> vmOpts = new ArrayList();
  67         Collections.addAll(vmOpts, initialOpts);
  68 
  69         int maxCacheSize = Math.max(0, Math.min(31, getMaxCacheSize()));
  70         if (maxCacheSize < hotCardTableSize) {
  71             System.out.format("Skiping test for %d cache size due max cache size %d",
  72                     hotCardTableSize, maxCacheSize
  73             );
  74             return;
  75         }


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