44 import java.util.regex.Pattern;

    44 import java.util.regex.Pattern;

    45 import jdk.internal.misc.Unsafe;

    45 import jdk.internal.misc.Unsafe;

    46 import jdk.test.lib.process.OutputAnalyzer;

    46 import jdk.test.lib.process.OutputAnalyzer;

    47 import jdk.test.lib.process.ProcessTools;

    47 import jdk.test.lib.process.ProcessTools;

    48 import jdk.test.lib.Utils;

    48 import jdk.test.lib.Utils;

    50 import sun.hotspot.WhiteBox;

    49 import sun.hotspot.WhiteBox;

    51 

    50 

    52 /* In order to test that TargetSurvivorRatio affects survivor space occupancy

    51 /* In order to test that TargetSurvivorRatio affects survivor space occupancy

    53  * we setup fixed MaxTenuringThreshold and then verifying that if size of allocated

    52  * we setup fixed MaxTenuringThreshold and then verifying that if size of allocated

    54  * objects is lower than (survivor_size * TargetSurvivorRatio / 100) then objects

    53  * objects is lower than (survivor_size * TargetSurvivorRatio / 100) then objects

   247     }

   246     }

   248 

   247 

   249     public static class TargetSurvivorRatioVerifier {

   248     public static class TargetSurvivorRatioVerifier {

   250 

   249 

   251         static final WhiteBox wb = WhiteBox.getWhiteBox();

   250         static final WhiteBox wb = WhiteBox.getWhiteBox();

   253 

   252 

   254         // Desired size of memory allocated at once

   253         // Desired size of memory allocated at once

   255         public static final int CHUNK_SIZE = 1024;

   254         public static final int CHUNK_SIZE = 1024;

   256         // Length of byte[] array that will have occupy CHUNK_SIZE bytes in heap

   255         // Length of byte[] array that will have occupy CHUNK_SIZE bytes in heap

   257         public static final int ARRAY_LENGTH = CHUNK_SIZE - Unsafe.ARRAY_BYTE_BASE_OFFSET;

   256         public static final int ARRAY_LENGTH = CHUNK_SIZE - Unsafe.ARRAY_BYTE_BASE_OFFSET;