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src/share/vm/utilities/globalDefinitions.hpp

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rev 7462 : 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.

*** 122,134 **** extern int LogBytesPerHeapOop; // Oop within a java object extern int LogBitsPerHeapOop; extern int BytesPerHeapOop; extern int BitsPerHeapOop; - // Oop encoding heap max - extern uint64_t OopEncodingHeapMax; - const int BitsPerJavaInteger = 32; const int BitsPerJavaLong = 64; const int BitsPerSize_t = size_tSize * BitsPerByte; // Size of a char[] needed to represent a jint as a string in decimal. --- 122,131 ----
*** 193,203 **** // bytes. inline size_t heap_word_size(size_t byte_size) { return (byte_size + (HeapWordSize-1)) >> LogHeapWordSize; } - const size_t K = 1024; const size_t M = K*K; const size_t G = M*K; const size_t HWperKB = K / sizeof(HeapWord); --- 190,199 ----
*** 395,405 **** const int LogKlassAlignmentInBytes = 3; const int LogKlassAlignment = LogKlassAlignmentInBytes - LogHeapWordSize; const int KlassAlignmentInBytes = 1 << LogKlassAlignmentInBytes; const int KlassAlignment = KlassAlignmentInBytes / HeapWordSize; ! // Klass encoding metaspace max size const uint64_t KlassEncodingMetaspaceMax = (uint64_t(max_juint) + 1) << LogKlassAlignmentInBytes; // Machine dependent stuff #if defined(X86) && defined(COMPILER2) && !defined(JAVASE_EMBEDDED) --- 391,410 ---- const int LogKlassAlignmentInBytes = 3; const int LogKlassAlignment = LogKlassAlignmentInBytes - LogHeapWordSize; const int KlassAlignmentInBytes = 1 << LogKlassAlignmentInBytes; const int KlassAlignment = KlassAlignmentInBytes / HeapWordSize; ! // Maximal size of heap where unscaled compression can be used. Also upper bound ! // for heap placement: 4GB. ! const uint64_t UnscaledOopHeapMax = 4*G; ! // Maximal size of heap where compressed oops can be used. Also upper bound for heap ! // placement for zero based compression algorithm: UnscaledOopHeapMax << LogMinObjAlignmentInBytes. ! extern uint64_t OopEncodingHeapMax; ! ! // Maximal size of compressed class space. Above this limit compression is not possible. ! // Also upper bound for placement of zero based class space. (Class space is further limited ! // to be < 3G, see arguments.cpp.) const uint64_t KlassEncodingMetaspaceMax = (uint64_t(max_juint) + 1) << LogKlassAlignmentInBytes; // Machine dependent stuff #if defined(X86) && defined(COMPILER2) && !defined(JAVASE_EMBEDDED)
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