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comparison test/testlibrary/whitebox/sun/hotspot/WhiteBox.java @ 20357:4bfc44ba0d19

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8055098: WB API should be extended to provide information about size and age of object. Summary: Extend the WhiteBox API to provide information about the size and age of objects. Further add a mechanism to trigger a young GC. Reviewed-by: tschatzl, sjohanss Contributed-by: Leonid Mesnik <leonid.mesnik@oracle.com>
author tschatzl
date Thu, 21 Aug 2014 16:44:41 +0200
parents 2c6ef90f030a
children 833b0f92429a
comparison
equal deleted inserted replaced
20355:47e8e40b94d3 20357:4bfc44ba0d19
67 public native void printHeapSizes(); 67 public native void printHeapSizes();
68 68
69 // Memory 69 // Memory
70 public native long getObjectAddress(Object o); 70 public native long getObjectAddress(Object o);
71 public native int getHeapOopSize(); 71 public native int getHeapOopSize();
72 public native boolean isObjectInOldGen(Object o);
73 public native long getObjectSize(Object o);
72 74
73 // Runtime 75 // Runtime
74 // Make sure class name is in the correct format 76 // Make sure class name is in the correct format
75 public boolean isClassAlive(String name) { 77 public boolean isClassAlive(String name) {
76 return isClassAlive0(name.replace('.', '/')); 78 return isClassAlive0(name.replace('.', '/'));
143 // Memory 145 // Memory
144 public native void readReservedMemory(); 146 public native void readReservedMemory();
145 public native long allocateMetaspace(ClassLoader classLoader, long size); 147 public native long allocateMetaspace(ClassLoader classLoader, long size);
146 public native void freeMetaspace(ClassLoader classLoader, long addr, long size); 148 public native void freeMetaspace(ClassLoader classLoader, long addr, long size);
147 149
150 // force Young GC
151 public native void youngGC();
152
148 // force Full GC 153 // force Full GC
149 public native void fullGC(); 154 public native void fullGC();
150 155
151 // Tests on ReservedSpace/VirtualSpace classes 156 // Tests on ReservedSpace/VirtualSpace classes
152 public native int stressVirtualSpaceResize(long reservedSpaceSize, long magnitude, long iterations); 157 public native int stressVirtualSpaceResize(long reservedSpaceSize, long magnitude, long iterations);