Mercurial > hg > graal-compiler
view src/share/vm/services/virtualMemoryTracker.hpp @ 20565:9f35f614847d
8060169: Update the Crash Reporting URL in the Java crash log
Summary: Update the URL for HotSpot bug reports.
Reviewed-by: dcubed, rdurbin
author | dbuck |
---|---|
date | Fri, 31 Oct 2014 12:05:56 -0700 |
parents | 417e3b8d04c5 |
children |
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/* * Copyright (c) 2013, 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_VIRTUAL_MEMORY_TRACKER_HPP #define SHARE_VM_SERVICES_VIRTUAL_MEMORY_TRACKER_HPP #if INCLUDE_NMT #include "memory/allocation.hpp" #include "services/allocationSite.hpp" #include "services/nmtCommon.hpp" #include "utilities/linkedlist.hpp" #include "utilities/nativeCallStack.hpp" #include "utilities/ostream.hpp" /* * Virtual memory counter */ class VirtualMemory VALUE_OBJ_CLASS_SPEC { private: size_t _reserved; size_t _committed; public: VirtualMemory() : _reserved(0), _committed(0) { } inline void reserve_memory(size_t sz) { _reserved += sz; } inline void commit_memory (size_t sz) { _committed += sz; assert(_committed <= _reserved, "Sanity check"); } inline void release_memory (size_t sz) { assert(_reserved >= sz, "Negative amount"); _reserved -= sz; } inline void uncommit_memory(size_t sz) { assert(_committed >= sz, "Negative amount"); _committed -= sz; } inline size_t reserved() const { return _reserved; } inline size_t committed() const { return _committed; } }; // Virtual memory allocation site, keeps track where the virtual memory is reserved. class VirtualMemoryAllocationSite : public AllocationSite<VirtualMemory> { public: VirtualMemoryAllocationSite(const NativeCallStack& stack) : AllocationSite<VirtualMemory>(stack) { } inline void reserve_memory(size_t sz) { data()->reserve_memory(sz); } inline void commit_memory (size_t sz) { data()->commit_memory(sz); } inline void uncommit_memory(size_t sz) { data()->uncommit_memory(sz); } inline void release_memory(size_t sz) { data()->release_memory(sz); } inline size_t reserved() const { return peek()->reserved(); } inline size_t committed() const { return peek()->committed(); } }; class VirtualMemorySummary; // This class represents a snapshot of virtual memory at a given time. // The latest snapshot is saved in a static area. class VirtualMemorySnapshot : public ResourceObj { friend class VirtualMemorySummary; private: VirtualMemory _virtual_memory[mt_number_of_types]; public: inline VirtualMemory* by_type(MEMFLAGS flag) { int index = NMTUtil::flag_to_index(flag); return &_virtual_memory[index]; } inline VirtualMemory* by_index(int index) { assert(index >= 0, "Index out of bound"); assert(index < mt_number_of_types, "Index out of bound"); return &_virtual_memory[index]; } inline size_t total_reserved() const { size_t amount = 0; for (int index = 0; index < mt_number_of_types; index ++) { amount += _virtual_memory[index].reserved(); } return amount; } inline size_t total_committed() const { size_t amount = 0; for (int index = 0; index < mt_number_of_types; index ++) { amount += _virtual_memory[index].committed(); } return amount; } void copy_to(VirtualMemorySnapshot* s) { for (int index = 0; index < mt_number_of_types; index ++) { s->_virtual_memory[index] = _virtual_memory[index]; } } }; class VirtualMemorySummary : AllStatic { public: static void initialize(); static inline void record_reserved_memory(size_t size, MEMFLAGS flag) { as_snapshot()->by_type(flag)->reserve_memory(size); } static inline void record_committed_memory(size_t size, MEMFLAGS flag) { as_snapshot()->by_type(flag)->commit_memory(size); } static inline void record_uncommitted_memory(size_t size, MEMFLAGS flag) { as_snapshot()->by_type(flag)->uncommit_memory(size); } static inline void record_released_memory(size_t size, MEMFLAGS flag) { as_snapshot()->by_type(flag)->release_memory(size); } // Move virtual memory from one memory type to another. // Virtual memory can be reserved before it is associated with a memory type, and tagged // as 'unknown'. Once the memory is tagged, the virtual memory will be moved from 'unknown' // type to specified memory type. static inline void move_reserved_memory(MEMFLAGS from, MEMFLAGS to, size_t size) { as_snapshot()->by_type(from)->release_memory(size); as_snapshot()->by_type(to)->reserve_memory(size); } static inline void move_committed_memory(MEMFLAGS from, MEMFLAGS to, size_t size) { as_snapshot()->by_type(from)->uncommit_memory(size); as_snapshot()->by_type(to)->commit_memory(size); } static inline void snapshot(VirtualMemorySnapshot* s) { as_snapshot()->copy_to(s); } static VirtualMemorySnapshot* as_snapshot() { return (VirtualMemorySnapshot*)_snapshot; } private: static size_t _snapshot[CALC_OBJ_SIZE_IN_TYPE(VirtualMemorySnapshot, size_t)]; }; /* * A virtual memory region */ class VirtualMemoryRegion VALUE_OBJ_CLASS_SPEC { private: address _base_address; size_t _size; public: VirtualMemoryRegion(address addr, size_t size) : _base_address(addr), _size(size) { assert(addr != NULL, "Invalid address"); assert(size > 0, "Invalid size"); } inline address base() const { return _base_address; } inline address end() const { return base() + size(); } inline size_t size() const { return _size; } inline bool is_empty() const { return size() == 0; } inline bool contain_address(address addr) const { return (addr >= base() && addr < end()); } inline bool contain_region(address addr, size_t size) const { return contain_address(addr) && contain_address(addr + size - 1); } inline bool same_region(address addr, size_t sz) const { return (addr == base() && sz == size()); } inline bool overlap_region(address addr, size_t sz) const { VirtualMemoryRegion rgn(addr, sz); return contain_address(addr) || contain_address(addr + sz - 1) || rgn.contain_address(base()) || rgn.contain_address(end() - 1); } inline bool adjacent_to(address addr, size_t sz) const { return (addr == end() || (addr + sz) == base()); } void exclude_region(address addr, size_t sz) { assert(contain_region(addr, sz), "Not containment"); assert(addr == base() || addr + sz == end(), "Can not exclude from middle"); size_t new_size = size() - sz; if (addr == base()) { set_base(addr + sz); } set_size(new_size); } void expand_region(address addr, size_t sz) { assert(adjacent_to(addr, sz), "Not adjacent regions"); if (base() == addr + sz) { set_base(addr); } set_size(size() + sz); } protected: void set_base(address base) { assert(base != NULL, "Sanity check"); _base_address = base; } void set_size(size_t size) { assert(size > 0, "Sanity check"); _size = size; } }; class CommittedMemoryRegion : public VirtualMemoryRegion { private: NativeCallStack _stack; public: CommittedMemoryRegion(address addr, size_t size, const NativeCallStack& stack) : VirtualMemoryRegion(addr, size), _stack(stack) { } inline int compare(const CommittedMemoryRegion& rgn) const { if (overlap_region(rgn.base(), rgn.size()) || adjacent_to (rgn.base(), rgn.size())) { return 0; } else { if (base() == rgn.base()) { return 0; } else if (base() > rgn.base()) { return 1; } else { return -1; } } } inline bool equals(const CommittedMemoryRegion& rgn) const { return compare(rgn) == 0; } inline void set_call_stack(const NativeCallStack& stack) { _stack = stack; } inline const NativeCallStack* call_stack() const { return &_stack; } }; typedef LinkedListIterator<CommittedMemoryRegion> CommittedRegionIterator; int compare_committed_region(const CommittedMemoryRegion&, const CommittedMemoryRegion&); class ReservedMemoryRegion : public VirtualMemoryRegion { private: SortedLinkedList<CommittedMemoryRegion, compare_committed_region> _committed_regions; NativeCallStack _stack; MEMFLAGS _flag; bool _all_committed; public: ReservedMemoryRegion(address base, size_t size, const NativeCallStack& stack, MEMFLAGS flag = mtNone) : VirtualMemoryRegion(base, size), _stack(stack), _flag(flag), _all_committed(false) { } ReservedMemoryRegion(address base, size_t size) : VirtualMemoryRegion(base, size), _stack(NativeCallStack::EMPTY_STACK), _flag(mtNone), _all_committed(false) { } // Copy constructor ReservedMemoryRegion(const ReservedMemoryRegion& rr) : VirtualMemoryRegion(rr.base(), rr.size()) { *this = rr; } inline void set_call_stack(const NativeCallStack& stack) { _stack = stack; } inline const NativeCallStack* call_stack() const { return &_stack; } void set_flag(MEMFLAGS flag); inline MEMFLAGS flag() const { return _flag; } inline int compare(const ReservedMemoryRegion& rgn) const { if (overlap_region(rgn.base(), rgn.size())) { return 0; } else { if (base() == rgn.base()) { return 0; } else if (base() > rgn.base()) { return 1; } else { return -1; } } } inline bool equals(const ReservedMemoryRegion& rgn) const { return compare(rgn) == 0; } bool add_committed_region(address addr, size_t size, const NativeCallStack& stack); bool remove_uncommitted_region(address addr, size_t size); size_t committed_size() const; // move committed regions that higher than specified address to // the new region void move_committed_regions(address addr, ReservedMemoryRegion& rgn); inline bool all_committed() const { return _all_committed; } void set_all_committed(bool b); CommittedRegionIterator iterate_committed_regions() const { return CommittedRegionIterator(_committed_regions.head()); } ReservedMemoryRegion& operator= (const ReservedMemoryRegion& other) { set_base(other.base()); set_size(other.size()); _stack = *other.call_stack(); _flag = other.flag(); _all_committed = other.all_committed(); if (other.all_committed()) { set_all_committed(true); } else { CommittedRegionIterator itr = other.iterate_committed_regions(); const CommittedMemoryRegion* rgn = itr.next(); while (rgn != NULL) { _committed_regions.add(*rgn); rgn = itr.next(); } } return *this; } private: // The committed region contains the uncommitted region, subtract the uncommitted // region from this committed region bool remove_uncommitted_region(LinkedListNode<CommittedMemoryRegion>* node, address addr, size_t sz); bool add_committed_region(const CommittedMemoryRegion& rgn) { assert(rgn.base() != NULL, "Invalid base address"); assert(size() > 0, "Invalid size"); return _committed_regions.add(rgn) != NULL; } }; int compare_reserved_region_base(const ReservedMemoryRegion& r1, const ReservedMemoryRegion& r2); class VirtualMemoryWalker : public StackObj { public: virtual bool do_allocation_site(const ReservedMemoryRegion* rgn) { return false; } }; // Main class called from MemTracker to track virtual memory allocations, commits and releases. class VirtualMemoryTracker : AllStatic { public: static bool initialize(NMT_TrackingLevel level); // Late phase initialization static bool late_initialize(NMT_TrackingLevel level); static bool add_reserved_region (address base_addr, size_t size, const NativeCallStack& stack, MEMFLAGS flag = mtNone, bool all_committed = false); static bool add_committed_region (address base_addr, size_t size, const NativeCallStack& stack); static bool remove_uncommitted_region (address base_addr, size_t size); static bool remove_released_region (address base_addr, size_t size); static void set_reserved_region_type (address addr, MEMFLAGS flag); // Walk virtual memory data structure for creating baseline, etc. static bool walk_virtual_memory(VirtualMemoryWalker* walker); static bool transition(NMT_TrackingLevel from, NMT_TrackingLevel to); private: static SortedLinkedList<ReservedMemoryRegion, compare_reserved_region_base>* _reserved_regions; }; #endif // INCLUDE_NMT #endif // SHARE_VM_SERVICES_VIRTUAL_MEMORY_TRACKER_HPP