src/hotspot/share/services/memReporter.hpp
author zgu
Thu, 08 Feb 2018 13:21:22 -0500
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parent 48874 f09fdaad7321
child 53244 9807daeb47c4
permissions -rw-r--r--
8196923: [REDO] NMT: Report array class count in NMT summary Summary: Added instance and array class counters in NMT summary report Reviewed-by: minqi, stuefe, coleenp
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/*
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 * Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#ifndef SHARE_VM_SERVICES_MEM_REPORTER_HPP
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#define SHARE_VM_SERVICES_MEM_REPORTER_HPP
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#if INCLUDE_NMT
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#include "memory/metaspace.hpp"
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#include "oops/instanceKlass.hpp"
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#include "services/memBaseline.hpp"
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#include "services/nmtCommon.hpp"
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#include "services/mallocTracker.hpp"
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#include "services/virtualMemoryTracker.hpp"
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/*
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 * Base class that provides helpers
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*/
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class MemReporterBase : public StackObj {
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 private:
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  size_t        _scale;  // report in this scale
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  outputStream* _output; // destination
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  MemReporterBase(outputStream* out = NULL, size_t scale = K)
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    : _scale(scale) {
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    _output = (out == NULL) ? tty : out;
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  }
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 protected:
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  inline outputStream* output() const {
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    return _output;
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  }
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  // Current reporting scale
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  inline const char* current_scale() const {
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    return NMTUtil::scale_name(_scale);
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  }
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  // Convert memory amount in bytes to current reporting scale
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  inline size_t amount_in_current_scale(size_t amount) const {
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    return NMTUtil::amount_in_scale(amount, _scale);
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  }
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  // Convert diff amount in bytes to current reporting scale
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  inline long diff_in_current_scale(size_t s1, size_t s2) const {
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    long amount = (long)(s1 - s2);
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    long scale = (long)_scale;
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    amount = (amount > 0) ? (amount + scale / 2) : (amount - scale / 2);
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    return amount / scale;
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  }
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  // Helper functions
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  // Calculate total reserved and committed amount
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  size_t reserved_total(const MallocMemory* malloc, const VirtualMemory* vm) const;
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  size_t committed_total(const MallocMemory* malloc, const VirtualMemory* vm) const;
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  // Print summary total, malloc and virtual memory
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  void print_total(size_t reserved, size_t committed) const;
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  void print_malloc(size_t amount, size_t count, MEMFLAGS flag = mtNone) const;
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  void print_virtual_memory(size_t reserved, size_t committed) const;
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  void print_malloc_line(size_t amount, size_t count) const;
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  void print_virtual_memory_line(size_t reserved, size_t committed) const;
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  void print_arena_line(size_t amount, size_t count) const;
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  void print_virtual_memory_region(const char* type, address base, size_t size) const;
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};
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/*
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 * The class is for generating summary tracking report.
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 */
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class MemSummaryReporter : public MemReporterBase {
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 private:
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  MallocMemorySnapshot*   _malloc_snapshot;
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  VirtualMemorySnapshot*  _vm_snapshot;
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  size_t                  _instance_class_count;
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  size_t                  _array_class_count;
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  // This constructor is for normal reporting from a recent baseline.
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  MemSummaryReporter(MemBaseline& baseline, outputStream* output,
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    size_t scale = K) : MemReporterBase(output, scale),
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    _malloc_snapshot(baseline.malloc_memory_snapshot()),
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    _vm_snapshot(baseline.virtual_memory_snapshot()),
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    _instance_class_count(baseline.instance_class_count()),
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    _array_class_count(baseline.array_class_count()) { }
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  // Generate summary report
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  virtual void report();
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  // Report summary for each memory type
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  void report_summary_of_type(MEMFLAGS type, MallocMemory* malloc_memory,
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    VirtualMemory* virtual_memory);
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  void report_metadata(Metaspace::MetadataType type) const;
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};
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/*
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 * The class is for generating detail tracking report.
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 */
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class MemDetailReporter : public MemSummaryReporter {
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  MemBaseline&   _baseline;
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  MemDetailReporter(MemBaseline& baseline, outputStream* output, size_t scale = K) :
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    MemSummaryReporter(baseline, output, scale),
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     _baseline(baseline) { }
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  // Generate detail report.
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  // The report contains summary and detail sections.
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  virtual void report() {
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    MemSummaryReporter::report();
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    report_virtual_memory_map();
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    report_detail();
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  }
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  // Report detail tracking data.
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  void report_detail();
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  // Report virtual memory map
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  void report_virtual_memory_map();
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  // Report malloc allocation sites
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  void report_malloc_sites();
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  // Report virtual memory reservation sites
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  void report_virtual_memory_allocation_sites();
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  // Report a virtual memory region
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  void report_virtual_memory_region(const ReservedMemoryRegion* rgn);
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};
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/*
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 * The class is for generating summary comparison report.
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 * It compares current memory baseline against an early baseline.
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 */
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class MemSummaryDiffReporter : public MemReporterBase {
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 protected:
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  MemBaseline&      _early_baseline;
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  MemBaseline&      _current_baseline;
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 public:
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  MemSummaryDiffReporter(MemBaseline& early_baseline, MemBaseline& current_baseline,
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    outputStream* output, size_t scale = K) : MemReporterBase(output, scale),
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    _early_baseline(early_baseline), _current_baseline(current_baseline) {
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    assert(early_baseline.baseline_type()   != MemBaseline::Not_baselined, "Not baselined");
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    assert(current_baseline.baseline_type() != MemBaseline::Not_baselined, "Not baselined");
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  }
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  // Generate summary comparison report
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  virtual void report_diff();
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 private:
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  // report the comparison of each memory type
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  void diff_summary_of_type(MEMFLAGS type,
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    const MallocMemory* early_malloc, const VirtualMemory* early_vm,
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    const MetaspaceSnapshot* early_ms,
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    const MallocMemory* current_malloc, const VirtualMemory* current_vm,
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    const MetaspaceSnapshot* current_ms) const;
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 protected:
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  void print_malloc_diff(size_t current_amount, size_t current_count,
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    size_t early_amount, size_t early_count, MEMFLAGS flags) const;
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  void print_virtual_memory_diff(size_t current_reserved, size_t current_committed,
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    size_t early_reserved, size_t early_committed) const;
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  void print_arena_diff(size_t current_amount, size_t current_count,
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    size_t early_amount, size_t early_count) const;
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  void print_metaspace_diff(const MetaspaceSnapshot* current_ms,
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                            const MetaspaceSnapshot* early_ms) const;
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  void print_metaspace_diff(Metaspace::MetadataType type,
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    const MetaspaceSnapshot* current_ms, const MetaspaceSnapshot* early_ms) const;
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};
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/*
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 * The class is for generating detail comparison report.
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 * It compares current memory baseline against an early baseline,
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 * both baselines have to be detail baseline.
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 */
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class MemDetailDiffReporter : public MemSummaryDiffReporter {
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 public:
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  MemDetailDiffReporter(MemBaseline& early_baseline, MemBaseline& current_baseline,
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    outputStream* output, size_t scale = K) :
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    MemSummaryDiffReporter(early_baseline, current_baseline, output, scale) { }
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  // Generate detail comparison report
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  virtual void report_diff();
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  // Malloc allocation site comparison
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  void diff_malloc_sites() const;
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  // Virutal memory reservation site comparison
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  void diff_virtual_memory_sites() const;
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  // New malloc allocation site in recent baseline
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  void new_malloc_site (const MallocSite* site) const;
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  // The malloc allocation site is not in recent baseline
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  void old_malloc_site (const MallocSite* site) const;
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  // Compare malloc allocation site, it is in both baselines
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  void diff_malloc_site(const MallocSite* early, const MallocSite* current)  const;
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  // New virtual memory allocation site in recent baseline
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  void new_virtual_memory_site (const VirtualMemoryAllocationSite* callsite) const;
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  // The virtual memory allocation site is not in recent baseline
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  void old_virtual_memory_site (const VirtualMemoryAllocationSite* callsite) const;
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  // Compare virtual memory allocation site, it is in both baseline
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  void diff_virtual_memory_site(const VirtualMemoryAllocationSite* early,
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                                const VirtualMemoryAllocationSite* current)  const;
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  void diff_malloc_site(const NativeCallStack* stack, size_t current_size,
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    size_t currrent_count, size_t early_size, size_t early_count, MEMFLAGS flags) const;
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  void diff_virtual_memory_site(const NativeCallStack* stack, size_t current_reserved,
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    size_t current_committed, size_t early_reserved, size_t early_committed) const;
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};
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#endif // INCLUDE_NMT
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#endif
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