| /* |
| * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. |
| * Copyright (c) 2018 SAP SE. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #ifndef SHARE_MEMORY_METASPACE_METASPACESTATISTICS_HPP |
| #define SHARE_MEMORY_METASPACE_METASPACESTATISTICS_HPP |
| |
| #include "utilities/globalDefinitions.hpp" |
| #include "memory/metaspace.hpp" // for MetadataType enum |
| #include "memory/metaspace/metachunk.hpp" // for ChunkIndex enum |
| |
| class outputStream; |
| |
| namespace metaspace { |
| |
| // Contains statistics for a number of free chunks. |
| class FreeChunksStatistics { |
| uintx _num; // Number of chunks |
| size_t _cap; // Total capacity, in words |
| |
| public: |
| FreeChunksStatistics(); |
| |
| void reset(); |
| |
| uintx num() const { return _num; } |
| size_t cap() const { return _cap; } |
| |
| void add(uintx n, size_t s); |
| void add(const FreeChunksStatistics& other); |
| void print_on(outputStream* st, size_t scale) const; |
| |
| }; // end: FreeChunksStatistics |
| |
| |
| // Contains statistics for a ChunkManager. |
| class ChunkManagerStatistics { |
| |
| FreeChunksStatistics _chunk_stats[NumberOfInUseLists]; |
| |
| public: |
| |
| // Free chunk statistics, by chunk index. |
| const FreeChunksStatistics& chunk_stats(ChunkIndex index) const { return _chunk_stats[index]; } |
| FreeChunksStatistics& chunk_stats(ChunkIndex index) { return _chunk_stats[index]; } |
| |
| void reset(); |
| size_t total_capacity() const; |
| |
| void print_on(outputStream* st, size_t scale) const; |
| |
| }; // ChunkManagerStatistics |
| |
| // Contains statistics for a number of chunks in use. |
| // Each chunk has a used and free portion; however, there are current chunks (serving |
| // potential future metaspace allocations) and non-current chunks. Unused portion of the |
| // former is counted as free, unused portion of the latter counts as waste. |
| class UsedChunksStatistics { |
| uintx _num; // Number of chunks |
| size_t _cap; // Total capacity in words. |
| size_t _used; // Total used area, in words |
| size_t _free; // Total free area (unused portions of current chunks), in words |
| size_t _waste; // Total waste area (unused portions of non-current chunks), in words |
| size_t _overhead; // Total sum of chunk overheads, in words. |
| |
| public: |
| |
| UsedChunksStatistics(); |
| |
| void reset(); |
| |
| uintx num() const { return _num; } |
| |
| // Total capacity, in words |
| size_t cap() const { return _cap; } |
| |
| // Total used area, in words |
| size_t used() const { return _used; } |
| |
| // Total free area (unused portions of current chunks), in words |
| size_t free() const { return _free; } |
| |
| // Total waste area (unused portions of non-current chunks), in words |
| size_t waste() const { return _waste; } |
| |
| // Total area spent in overhead (chunk headers), in words |
| size_t overhead() const { return _overhead; } |
| |
| void add_num(uintx n) { _num += n; } |
| void add_cap(size_t s) { _cap += s; } |
| void add_used(size_t s) { _used += s; } |
| void add_free(size_t s) { _free += s; } |
| void add_waste(size_t s) { _waste += s; } |
| void add_overhead(size_t s) { _overhead += s; } |
| |
| void add(const UsedChunksStatistics& other); |
| |
| void print_on(outputStream* st, size_t scale) const; |
| |
| #ifdef ASSERT |
| void check_sanity() const; |
| #endif |
| |
| }; // UsedChunksStatistics |
| |
| // Class containing statistics for one or more space managers. |
| class SpaceManagerStatistics { |
| |
| UsedChunksStatistics _chunk_stats[NumberOfInUseLists]; |
| uintx _free_blocks_num; |
| size_t _free_blocks_cap_words; |
| |
| public: |
| |
| SpaceManagerStatistics(); |
| |
| // Chunk statistics by chunk index |
| const UsedChunksStatistics& chunk_stats(ChunkIndex index) const { return _chunk_stats[index]; } |
| UsedChunksStatistics& chunk_stats(ChunkIndex index) { return _chunk_stats[index]; } |
| |
| uintx free_blocks_num () const { return _free_blocks_num; } |
| size_t free_blocks_cap_words () const { return _free_blocks_cap_words; } |
| |
| void reset(); |
| |
| void add_free_blocks_info(uintx num, size_t cap); |
| |
| // Returns total chunk statistics over all chunk types. |
| UsedChunksStatistics totals() const; |
| |
| void add(const SpaceManagerStatistics& other); |
| |
| void print_on(outputStream* st, size_t scale, bool detailed) const; |
| |
| }; // SpaceManagerStatistics |
| |
| class ClassLoaderMetaspaceStatistics { |
| |
| SpaceManagerStatistics _sm_stats[Metaspace::MetadataTypeCount]; |
| |
| public: |
| |
| ClassLoaderMetaspaceStatistics(); |
| |
| const SpaceManagerStatistics& sm_stats(Metaspace::MetadataType mdType) const { return _sm_stats[mdType]; } |
| SpaceManagerStatistics& sm_stats(Metaspace::MetadataType mdType) { return _sm_stats[mdType]; } |
| |
| const SpaceManagerStatistics& nonclass_sm_stats() const { return sm_stats(Metaspace::NonClassType); } |
| SpaceManagerStatistics& nonclass_sm_stats() { return sm_stats(Metaspace::NonClassType); } |
| const SpaceManagerStatistics& class_sm_stats() const { return sm_stats(Metaspace::ClassType); } |
| SpaceManagerStatistics& class_sm_stats() { return sm_stats(Metaspace::ClassType); } |
| |
| void reset(); |
| |
| void add(const ClassLoaderMetaspaceStatistics& other); |
| |
| // Returns total space manager statistics for both class and non-class metaspace |
| SpaceManagerStatistics totals() const; |
| |
| void print_on(outputStream* st, size_t scale, bool detailed) const; |
| |
| }; // ClassLoaderMetaspaceStatistics |
| |
| } // namespace metaspace |
| |
| #endif /* SHARE_MEMORY_METASPACE_METASPACESTATISTICS_HPP */ |
| |