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test/gc/g1/TestShrinkAuxiliaryData.java

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  32 import java.text.DecimalFormat;
  33 import java.text.DecimalFormatSymbols;
  34 import java.util.ArrayList;
  35 import java.util.Arrays;
  36 import java.util.Collections;
  37 import java.util.LinkedList;
  38 import java.util.List;
  39 import sun.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         "-XX:+PrintGCDetails",
  53         "-XX:+UnlockDiagnosticVMOptions",
  54         "-XX:+WhiteBoxAPI",
  55         "-Xbootclasspath/a:.",
  56     };
  57 
  58     private final int hotCardTableSize;
  59 
  60     protected TestShrinkAuxiliaryData(int hotCardTableSize) {
  61         this.hotCardTableSize = hotCardTableSize;
  62     }
  63 
  64     protected void test() throws Exception {
  65         ArrayList<String> vmOpts = new ArrayList();
  66         Collections.addAll(vmOpts, initialOpts);
  67 
  68         int maxCacheSize = Math.max(0, Math.min(31, getMaxCacheSize()));
  69         if (maxCacheSize < hotCardTableSize) {
  70             System.out.format("Skiping test for %d cache size due max cache size %d",
  71                     hotCardTableSize, maxCacheSize
  72             );




  32 import java.text.DecimalFormat;
  33 import java.text.DecimalFormatSymbols;
  34 import java.util.ArrayList;
  35 import java.util.Arrays;
  36 import java.util.Collections;
  37 import java.util.LinkedList;
  38 import java.util.List;
  39 import sun.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         "-Xbootclasspath/a:.",
  56     };
  57 
  58     private final int hotCardTableSize;
  59 
  60     protected TestShrinkAuxiliaryData(int hotCardTableSize) {
  61         this.hotCardTableSize = hotCardTableSize;
  62     }
  63 
  64     protected void test() throws Exception {
  65         ArrayList<String> vmOpts = new ArrayList();
  66         Collections.addAll(vmOpts, initialOpts);
  67 
  68         int maxCacheSize = Math.max(0, Math.min(31, getMaxCacheSize()));
  69         if (maxCacheSize < hotCardTableSize) {
  70             System.out.format("Skiping test for %d cache size due max cache size %d",
  71                     hotCardTableSize, maxCacheSize
  72             );


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