src/hotspot/share/memory/metaspace/metaspaceCommon.hpp

rev 50187 : imported patch metaspace-split

*** 23,39 ****
   */
  
  #ifndef SHARE_MEMORY_METASPACE_METASPACECOMMON_HPP_
  #define SHARE_MEMORY_METASPACE_METASPACECOMMON_HPP_
  
  #include "utilities/globalDefinitions.hpp"
  
- 
  class outputStream;
  
  namespace metaspace {
! namespace internals {
  
  // Print a size, in words, scaled.
  void print_scaled_words(outputStream* st, size_t word_size, size_t scale = 0, int width = -1);
  
  // Convenience helper: prints a size value and a percentage.
--- 23,47 ----
   */
  
  #ifndef SHARE_MEMORY_METASPACE_METASPACECOMMON_HPP_
  #define SHARE_MEMORY_METASPACE_METASPACECOMMON_HPP_
  
+ #include "utilities/debug.hpp"
  #include "utilities/globalDefinitions.hpp"
  
  class outputStream;
  
  namespace metaspace {
! 
! enum ChunkSizes {    // in words.
!   ClassSpecializedChunk = 128,
!   SpecializedChunk = 128,
!   ClassSmallChunk = 256,
!   SmallChunk = 512,
!   ClassMediumChunk = 4 * K,
!   MediumChunk = 8 * K
! };
  
  // Print a size, in words, scaled.
  void print_scaled_words(outputStream* st, size_t word_size, size_t scale = 0, int width = -1);
  
  // Convenience helper: prints a size value and a percentage.
*** 48,56 ****
  
  // Prints a percentage value. Values smaller than 1% but not 0 are displayed as "<1%", values
  // larger than 99% but not 100% are displayed as ">100%".
  void print_percentage(outputStream* st, size_t total, size_t part);
  
! } // namespace internals
  } // namespace metaspace
  
  #endif /* SHARE_MEMORY_METASPACE_METASPACESTATISTICS_HPP_ */
--- 56,127 ----
  
  // Prints a percentage value. Values smaller than 1% but not 0 are displayed as "<1%", values
  // larger than 99% but not 100% are displayed as ">100%".
  void print_percentage(outputStream* st, size_t total, size_t part);
  
! 
! #define assert_is_aligned(value, alignment)                  \
!   assert(is_aligned((value), (alignment)),                   \
!          SIZE_FORMAT_HEX " is not aligned to "               \
!          SIZE_FORMAT, (size_t)(uintptr_t)value, (alignment))
! 
! // Internal statistics.
! #ifdef ASSERT
! struct  internal_statistics_t {
!   // Number of allocations.
!   uintx num_allocs;
!   // Number of times a ClassLoaderMetaspace was born...
!   uintx num_metaspace_births;
!   // ... and died.
!   uintx num_metaspace_deaths;
!   // Number of times VirtualSpaceListNodes were created...
!   uintx num_vsnodes_created;
!   // ... and purged.
!   uintx num_vsnodes_purged;
!   // Number of times we expanded the committed section of the space.
!   uintx num_committed_space_expanded;
!   // Number of deallocations
!   uintx num_deallocs;
!   // Number of deallocations triggered from outside ("real" deallocations).
!   uintx num_external_deallocs;
!   // Number of times an allocation was satisfied from deallocated blocks.
!   uintx num_allocs_from_deallocated_blocks;
! };
! extern internal_statistics_t g_internal_statistics;
! #endif
! 
! // ChunkIndex defines the type of chunk.
! // Chunk types differ by size: specialized < small < medium, chunks
! // larger than medium are humongous chunks of varying size.
! enum ChunkIndex {
!   ZeroIndex = 0,
!   SpecializedIndex = ZeroIndex,
!   SmallIndex = SpecializedIndex + 1,
!   MediumIndex = SmallIndex + 1,
!   HumongousIndex = MediumIndex + 1,
!   NumberOfFreeLists = 3,
!   NumberOfInUseLists = 4
! };
! 
! // Utility functions.
! size_t get_size_for_nonhumongous_chunktype(ChunkIndex chunk_type, bool is_class);
! ChunkIndex get_chunk_type_by_size(size_t size, bool is_class);
! 
! ChunkIndex next_chunk_index(ChunkIndex i);
! ChunkIndex prev_chunk_index(ChunkIndex i);
! // Returns a descriptive name for a chunk type.
! const char* chunk_size_name(ChunkIndex index);
! 
! // Verify chunk type.
! inline bool is_valid_chunktype(ChunkIndex index) {
!   return index == SpecializedIndex || index == SmallIndex ||
!          index == MediumIndex || index == HumongousIndex;
! }
! 
! inline bool is_valid_nonhumongous_chunktype(ChunkIndex index) {
!   return is_valid_chunktype(index) && index != HumongousIndex;
! }
! 
  } // namespace metaspace
  
  #endif /* SHARE_MEMORY_METASPACE_METASPACESTATISTICS_HPP_ */
+