| /* |
| * Copyright (c) 2012, 2014, Oracle and/or its affiliates. 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_VM_SERVICES_MEM_BASELINE_HPP |
| #define SHARE_VM_SERVICES_MEM_BASELINE_HPP |
| |
| #if INCLUDE_NMT |
| |
| #include "memory/allocation.hpp" |
| #include "runtime/mutex.hpp" |
| #include "services/mallocSiteTable.hpp" |
| #include "services/mallocTracker.hpp" |
| #include "services/nmtCommon.hpp" |
| #include "services/virtualMemoryTracker.hpp" |
| #include "utilities/linkedlist.hpp" |
| |
| typedef LinkedListIterator<MallocSite> MallocSiteIterator; |
| typedef LinkedListIterator<VirtualMemoryAllocationSite> VirtualMemorySiteIterator; |
| typedef LinkedListIterator<ReservedMemoryRegion> VirtualMemoryAllocationIterator; |
| |
| /* |
| * Baseline a memory snapshot |
| */ |
| class MemBaseline VALUE_OBJ_CLASS_SPEC { |
| public: |
| enum BaselineThreshold { |
| SIZE_THRESHOLD = K // Only allocation size over this threshold will be baselined. |
| }; |
| |
| enum BaselineType { |
| Not_baselined, |
| Summary_baselined, |
| Detail_baselined |
| }; |
| |
| enum SortingOrder { |
| by_address, // by memory address |
| by_size, // by memory size |
| by_site // by call site where the memory is allocated from |
| }; |
| |
| private: |
| // Summary information |
| MallocMemorySnapshot _malloc_memory_snapshot; |
| VirtualMemorySnapshot _virtual_memory_snapshot; |
| |
| size_t _class_count; |
| |
| // Allocation sites information |
| // Malloc allocation sites |
| LinkedListImpl<MallocSite> _malloc_sites; |
| |
| // All virtual memory allocations |
| LinkedListImpl<ReservedMemoryRegion> _virtual_memory_allocations; |
| |
| // Virtual memory allocations by allocation sites, always in by_address |
| // order |
| LinkedListImpl<VirtualMemoryAllocationSite> _virtual_memory_sites; |
| |
| SortingOrder _malloc_sites_order; |
| SortingOrder _virtual_memory_sites_order; |
| |
| BaselineType _baseline_type; |
| |
| public: |
| // create a memory baseline |
| MemBaseline(): |
| _baseline_type(Not_baselined), |
| _class_count(0) { |
| } |
| |
| bool baseline(bool summaryOnly = true); |
| |
| BaselineType baseline_type() const { return _baseline_type; } |
| |
| MallocMemorySnapshot* malloc_memory_snapshot() { |
| return &_malloc_memory_snapshot; |
| } |
| |
| VirtualMemorySnapshot* virtual_memory_snapshot() { |
| return &_virtual_memory_snapshot; |
| } |
| |
| MallocSiteIterator malloc_sites(SortingOrder order); |
| VirtualMemorySiteIterator virtual_memory_sites(SortingOrder order); |
| |
| // Virtual memory allocation iterator always returns in virtual memory |
| // base address order. |
| VirtualMemoryAllocationIterator virtual_memory_allocations() { |
| assert(!_virtual_memory_allocations.is_empty(), "Not detail baseline"); |
| return VirtualMemoryAllocationIterator(_virtual_memory_allocations.head()); |
| } |
| |
| // Total reserved memory = total malloc'd memory + total reserved virtual |
| // memory |
| size_t total_reserved_memory() const { |
| assert(baseline_type() != Not_baselined, "Not yet baselined"); |
| size_t amount = _malloc_memory_snapshot.total() + |
| _virtual_memory_snapshot.total_reserved(); |
| return amount; |
| } |
| |
| // Total committed memory = total malloc'd memory + total committed |
| // virtual memory |
| size_t total_committed_memory() const { |
| assert(baseline_type() != Not_baselined, "Not yet baselined"); |
| size_t amount = _malloc_memory_snapshot.total() + |
| _virtual_memory_snapshot.total_committed(); |
| return amount; |
| } |
| |
| size_t total_arena_memory() const { |
| assert(baseline_type() != Not_baselined, "Not yet baselined"); |
| return _malloc_memory_snapshot.total_arena(); |
| } |
| |
| size_t malloc_tracking_overhead() const { |
| assert(baseline_type() != Not_baselined, "Not yet baselined"); |
| MemBaseline* bl = const_cast<MemBaseline*>(this); |
| return bl->_malloc_memory_snapshot.malloc_overhead()->size(); |
| } |
| |
| MallocMemory* malloc_memory(MEMFLAGS flag) { |
| assert(baseline_type() != Not_baselined, "Not yet baselined"); |
| return _malloc_memory_snapshot.by_type(flag); |
| } |
| |
| VirtualMemory* virtual_memory(MEMFLAGS flag) { |
| assert(baseline_type() != Not_baselined, "Not yet baselined"); |
| return _virtual_memory_snapshot.by_type(flag); |
| } |
| |
| |
| size_t class_count() const { |
| assert(baseline_type() != Not_baselined, "Not yet baselined"); |
| return _class_count; |
| } |
| |
| size_t thread_count() const { |
| assert(baseline_type() != Not_baselined, "Not yet baselined"); |
| return _malloc_memory_snapshot.thread_count(); |
| } |
| |
| // reset the baseline for reuse |
| void reset() { |
| _baseline_type = Not_baselined; |
| // _malloc_memory_snapshot and _virtual_memory_snapshot are copied over. |
| _class_count = 0; |
| |
| _malloc_sites.clear(); |
| _virtual_memory_sites.clear(); |
| _virtual_memory_allocations.clear(); |
| } |
| |
| private: |
| // Baseline summary information |
| bool baseline_summary(); |
| |
| // Baseline allocation sites (detail tracking only) |
| bool baseline_allocation_sites(); |
| |
| // Aggregate virtual memory allocation by allocation sites |
| bool aggregate_virtual_memory_allocation_sites(); |
| |
| // Sorting allocation sites in different orders |
| // Sort allocation sites in size order |
| void malloc_sites_to_size_order(); |
| // Sort allocation sites in call site address order |
| void malloc_sites_to_allocation_site_order(); |
| |
| // Sort allocation sites in reserved size order |
| void virtual_memory_sites_to_size_order(); |
| // Sort allocation sites in call site address order |
| void virtual_memory_sites_to_reservation_site_order(); |
| }; |
| |
| #endif // INCLUDE_NMT |
| |
| #endif // SHARE_VM_SERVICES_MEM_BASELINE_HPP |