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comparison src/share/vm/utilities/globalDefinitions.hpp @ 13000:209aa13ab8c0

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8024927: Nashorn performance regression with CompressedOops Summary: Allocate compressed class space at end of Java heap. For small heap sizes, without CDS, save some space so compressed classes can have the same favorable compression as oops Reviewed-by: stefank, hseigel, goetz
author coleenp
date Fri, 25 Oct 2013 15:19:29 -0400
parents aa6f2ea19d8f
children 610be0309a79 2b8e28fdf503
comparison
equal deleted inserted replaced
12999:634715d59d9e 13000:209aa13ab8c0
365 const int KlassAlignmentInBytes = 1 << LogKlassAlignmentInBytes; 365 const int KlassAlignmentInBytes = 1 << LogKlassAlignmentInBytes;
366 const int KlassAlignment = KlassAlignmentInBytes / HeapWordSize; 366 const int KlassAlignment = KlassAlignmentInBytes / HeapWordSize;
367 367
368 // Klass encoding metaspace max size 368 // Klass encoding metaspace max size
369 const uint64_t KlassEncodingMetaspaceMax = (uint64_t(max_juint) + 1) << LogKlassAlignmentInBytes; 369 const uint64_t KlassEncodingMetaspaceMax = (uint64_t(max_juint) + 1) << LogKlassAlignmentInBytes;
370
371 const jlong CompressedKlassPointersBase = NOT_LP64(0) LP64_ONLY(CONST64(0x800000000)); // 32*G
372 370
373 // Machine dependent stuff 371 // Machine dependent stuff
374 372
375 #ifdef TARGET_ARCH_x86 373 #ifdef TARGET_ARCH_x86
376 # include "globalDefinitions_x86.hpp" 374 # include "globalDefinitions_x86.hpp"