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hotspot/src/share/vm/prims/whitebox.cpp
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rev 7369 : 8061715: gc/g1/TestShrinkAuxiliaryData15.java fails with java.lang.RuntimeException: heap decommit failed - after > before
Summary: added WhiteBox methods to count regions and exact aux data sizes
Reviewed-by: jwilhelm, brutisso
@@ -307,10 +307,16 @@
oop result = JNIHandles::resolve(obj);
const HeapRegion* hr = g1->heap_region_containing(result);
return hr->isHumongous();
WB_END
+WB_ENTRY(jlong, WB_G1NumMaxRegions(JNIEnv* env, jobject o))
+ G1CollectedHeap* g1 = G1CollectedHeap::heap();
+ size_t nr = g1->max_regions();
+ return (jlong)nr;
+WB_END
+
WB_ENTRY(jlong, WB_G1NumFreeRegions(JNIEnv* env, jobject o))
G1CollectedHeap* g1 = G1CollectedHeap::heap();
size_t nr = g1->num_free_regions();
return (jlong)nr;
WB_END
@@ -322,10 +328,18 @@
WB_END
WB_ENTRY(jint, WB_G1RegionSize(JNIEnv* env, jobject o))
return (jint)HeapRegion::GrainBytes;
WB_END
+
+WB_ENTRY(jobject, WB_G1AuxiliaryMemoryUsage(JNIEnv* env))
+ ResourceMark rm(THREAD);
+ G1CollectedHeap* g1h = G1CollectedHeap::heap();
+ MemoryUsage usage = g1h->get_auxiliary_data_memory_usage();
+ Handle h = MemoryService::create_MemoryUsage_obj(usage, CHECK_NULL);
+ return JNIHandles::make_local(env, h());
+WB_END
#endif // INCLUDE_ALL_GCS
#if INCLUDE_NMT
// Alloc memory using the test memory type so that we can use that to see if
// NMT picks it up correctly
@@ -1012,12 +1026,15 @@
{CC"readFromNoaccessArea",CC"()V", (void*)&WB_ReadFromNoaccessArea},
{CC"stressVirtualSpaceResize",CC"(JJJ)I", (void*)&WB_StressVirtualSpaceResize},
#if INCLUDE_ALL_GCS
{CC"g1InConcurrentMark", CC"()Z", (void*)&WB_G1InConcurrentMark},
{CC"g1IsHumongous", CC"(Ljava/lang/Object;)Z", (void*)&WB_G1IsHumongous },
+ {CC"g1NumMaxRegions", CC"()J", (void*)&WB_G1NumMaxRegions },
{CC"g1NumFreeRegions", CC"()J", (void*)&WB_G1NumFreeRegions },
{CC"g1RegionSize", CC"()I", (void*)&WB_G1RegionSize },
+ {CC"g1AuxiliaryMemoryUsage", CC"()Ljava/lang/management/MemoryUsage;",
+ (void*)&WB_G1AuxiliaryMemoryUsage },
#endif // INCLUDE_ALL_GCS
#if INCLUDE_NMT
{CC"NMTMalloc", CC"(J)J", (void*)&WB_NMTMalloc },
{CC"NMTMallocWithPseudoStack", CC"(JI)J", (void*)&WB_NMTMallocWithPseudoStack},
{CC"NMTFree", CC"(J)V", (void*)&WB_NMTFree },
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