Mercurial > hg > graal-compiler
view src/share/vm/services/memBaseline.hpp @ 14470:f6490a5f084a
8033440: jmap reports unexpected used/free size of concurrent mark-sweep generation
Summary: SA used the wrong type for the indexedFreeList in CompactibleFreeListSpace.
Reviewed-by: coleenp, dsamersoff
author | sjohanss |
---|---|
date | Mon, 17 Feb 2014 09:51:37 +0100 |
parents | fbca7eaeac2e |
children | 833b0f92429a |
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/* * Copyright (c) 2012, 2013, 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 #include "memory/allocation.hpp" #include "runtime/mutex.hpp" #include "services/memPtr.hpp" #include "services/memSnapshot.hpp" // compare unsigned number #define UNSIGNED_COMPARE(a, b) ((a > b) ? 1 : ((a == b) ? 0 : -1)) /* * MallocCallsitePointer and VMCallsitePointer are used * to baseline memory blocks with their callsite information. * They are only available when detail tracking is turned * on. */ /* baselined malloc record aggregated by callsite */ class MallocCallsitePointer : public MemPointer { private: size_t _count; // number of malloc invocation from this callsite size_t _amount; // total amount of memory malloc-ed from this callsite public: MallocCallsitePointer() { _count = 0; _amount = 0; } MallocCallsitePointer(address pc) : MemPointer(pc) { _count = 0; _amount = 0; } MallocCallsitePointer& operator=(const MallocCallsitePointer& p) { MemPointer::operator=(p); _count = p.count(); _amount = p.amount(); return *this; } inline void inc(size_t size) { _count ++; _amount += size; }; inline size_t count() const { return _count; } inline size_t amount() const { return _amount; } }; // baselined virtual memory record aggregated by callsite class VMCallsitePointer : public MemPointer { private: size_t _count; // number of invocation from this callsite size_t _reserved_amount; // total reserved amount size_t _committed_amount; // total committed amount public: VMCallsitePointer() { _count = 0; _reserved_amount = 0; _committed_amount = 0; } VMCallsitePointer(address pc) : MemPointer(pc) { _count = 0; _reserved_amount = 0; _committed_amount = 0; } VMCallsitePointer& operator=(const VMCallsitePointer& p) { MemPointer::operator=(p); _count = p.count(); _reserved_amount = p.reserved_amount(); _committed_amount = p.committed_amount(); return *this; } inline void inc(size_t reserved, size_t committed) { _count ++; _reserved_amount += reserved; _committed_amount += committed; } inline size_t count() const { return _count; } inline size_t reserved_amount() const { return _reserved_amount; } inline size_t committed_amount() const { return _committed_amount; } }; // maps a memory type flag to readable name typedef struct _memType2Name { MEMFLAGS _flag; const char* _name; } MemType2Name; // This class aggregates malloc'd records by memory type class MallocMem VALUE_OBJ_CLASS_SPEC { private: MEMFLAGS _type; size_t _count; size_t _amount; public: MallocMem() { _type = mtNone; _count = 0; _amount = 0; } MallocMem(MEMFLAGS flags) { assert(HAS_VALID_MEMORY_TYPE(flags), "no type"); _type = FLAGS_TO_MEMORY_TYPE(flags); _count = 0; _amount = 0; } inline void set_type(MEMFLAGS flag) { _type = flag; } inline void clear() { _count = 0; _amount = 0; _type = mtNone; } MallocMem& operator=(const MallocMem& m) { assert(_type == m.type(), "different type"); _count = m.count(); _amount = m.amount(); return *this; } inline void inc(size_t amt) { _amount += amt; _count ++; } inline void reduce(size_t amt) { assert(_amount >= amt, "Just check"); _amount -= amt; } inline void overwrite_counter(size_t count) { _count = count; } inline MEMFLAGS type() const { return _type; } inline bool is_type(MEMFLAGS flags) const { return FLAGS_TO_MEMORY_TYPE(flags) == _type; } inline size_t count() const { return _count; } inline size_t amount() const { return _amount; } }; // This class records live arena's memory usage class ArenaMem : public MallocMem { public: ArenaMem(MEMFLAGS typeflag): MallocMem(typeflag) { } ArenaMem() { } }; // This class aggregates virtual memory by its memory type class VMMem VALUE_OBJ_CLASS_SPEC { private: MEMFLAGS _type; size_t _count; size_t _reserved_amount; size_t _committed_amount; public: VMMem() { _type = mtNone; _count = 0; _reserved_amount = 0; _committed_amount = 0; } VMMem(MEMFLAGS flags) { assert(HAS_VALID_MEMORY_TYPE(flags), "no type"); _type = FLAGS_TO_MEMORY_TYPE(flags); _count = 0; _reserved_amount = 0; _committed_amount = 0; } inline void clear() { _type = mtNone; _count = 0; _reserved_amount = 0; _committed_amount = 0; } inline void set_type(MEMFLAGS flags) { _type = FLAGS_TO_MEMORY_TYPE(flags); } VMMem& operator=(const VMMem& m) { assert(_type == m.type(), "different type"); _count = m.count(); _reserved_amount = m.reserved_amount(); _committed_amount = m.committed_amount(); return *this; } inline MEMFLAGS type() const { return _type; } inline bool is_type(MEMFLAGS flags) const { return FLAGS_TO_MEMORY_TYPE(flags) == _type; } inline void inc(size_t reserved_amt, size_t committed_amt) { _reserved_amount += reserved_amt; _committed_amount += committed_amt; _count ++; } inline size_t count() const { return _count; } inline size_t reserved_amount() const { return _reserved_amount; } inline size_t committed_amount() const { return _committed_amount; } }; #define NUMBER_OF_MEMORY_TYPE (mt_number_of_types + 1) class BaselineReporter; class BaselineComparisonReporter; /* * This class baselines current memory snapshot. * A memory baseline summarizes memory usage by memory type, * aggregates memory usage by callsites when detail tracking * is on. */ class MemBaseline VALUE_OBJ_CLASS_SPEC { friend class BaselineReporter; friend class BaselineComparisonReporter; private: // overall summaries size_t _total_malloced; size_t _total_vm_reserved; size_t _total_vm_committed; size_t _number_of_classes; size_t _number_of_threads; // if it has properly baselined bool _baselined; // we categorize memory into three categories within the memory type MallocMem _malloc_data[NUMBER_OF_MEMORY_TYPE]; VMMem _vm_data[NUMBER_OF_MEMORY_TYPE]; ArenaMem _arena_data[NUMBER_OF_MEMORY_TYPE]; // memory records that aggregate memory usage by callsites. // only available when detail tracking is on. MemPointerArray* _malloc_cs; MemPointerArray* _vm_cs; // virtual memory map MemPointerArray* _vm_map; private: static MemType2Name MemType2NameMap[NUMBER_OF_MEMORY_TYPE]; private: // should not use copy constructor MemBaseline(MemBaseline& copy) { ShouldNotReachHere(); } // check and block at a safepoint static inline void check_safepoint(JavaThread* thr); public: // create a memory baseline MemBaseline(); ~MemBaseline(); inline bool baselined() const { return _baselined; } MemBaseline& operator=(const MemBaseline& other); // reset the baseline for reuse void clear(); // baseline the snapshot bool baseline(MemSnapshot& snapshot, bool summary_only = true); bool baseline(const MemPointerArray* malloc_records, const MemPointerArray* vm_records, bool summary_only = true); // total malloc'd memory of specified memory type inline size_t malloc_amount(MEMFLAGS flag) const { return _malloc_data[flag2index(flag)].amount(); } // number of malloc'd memory blocks of specified memory type inline size_t malloc_count(MEMFLAGS flag) const { return _malloc_data[flag2index(flag)].count(); } // total memory used by arenas of specified memory type inline size_t arena_amount(MEMFLAGS flag) const { return _arena_data[flag2index(flag)].amount(); } // number of arenas of specified memory type inline size_t arena_count(MEMFLAGS flag) const { return _arena_data[flag2index(flag)].count(); } // total reserved memory of specified memory type inline size_t reserved_amount(MEMFLAGS flag) const { return _vm_data[flag2index(flag)].reserved_amount(); } // total committed memory of specified memory type inline size_t committed_amount(MEMFLAGS flag) const { return _vm_data[flag2index(flag)].committed_amount(); } // total memory (malloc'd + mmap'd + arena) of specified // memory type inline size_t total_amount(MEMFLAGS flag) const { int index = flag2index(flag); return _malloc_data[index].amount() + _vm_data[index].reserved_amount() + _arena_data[index].amount(); } /* overall summaries */ // total malloc'd memory in snapshot inline size_t total_malloc_amount() const { return _total_malloced; } // total mmap'd memory in snapshot inline size_t total_reserved_amount() const { return _total_vm_reserved; } // total committed memory in snapshot inline size_t total_committed_amount() const { return _total_vm_committed; } // number of loaded classes inline size_t number_of_classes() const { return _number_of_classes; } // number of running threads inline size_t number_of_threads() const { return _number_of_threads; } // lookup human readable name of a memory type static const char* type2name(MEMFLAGS type); private: // convert memory flag to the index to mapping table int flag2index(MEMFLAGS flag) const; // reset baseline values void reset(); // summarize the records in global snapshot bool baseline_malloc_summary(const MemPointerArray* malloc_records); bool baseline_vm_summary(const MemPointerArray* vm_records); bool baseline_malloc_details(const MemPointerArray* malloc_records); bool baseline_vm_details(const MemPointerArray* vm_records); // print a line of malloc'd memory aggregated by callsite void print_malloc_callsite(outputStream* st, address pc, size_t size, size_t count, int diff_amt, int diff_count) const; // print a line of mmap'd memory aggregated by callsite void print_vm_callsite(outputStream* st, address pc, size_t rsz, size_t csz, int diff_rsz, int diff_csz) const; // sorting functions for raw records static int malloc_sort_by_pc(const void* p1, const void* p2); static int malloc_sort_by_addr(const void* p1, const void* p2); private: // sorting functions for baselined records static int bl_malloc_sort_by_size(const void* p1, const void* p2); static int bl_vm_sort_by_size(const void* p1, const void* p2); static int bl_malloc_sort_by_pc(const void* p1, const void* p2); static int bl_vm_sort_by_pc(const void* p1, const void* p2); }; #endif // SHARE_VM_SERVICES_MEM_BASELINE_HPP