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/*
* Copyright (c) 2012, 2022, 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_SERVICES_MEMREPORTER_HPP
#define SHARE_SERVICES_MEMREPORTER_HPP
#include "memory/metaspace.hpp"
#include "oops/instanceKlass.hpp"
#include "services/memBaseline.hpp"
#include "services/nmtCommon.hpp"
#include "services/mallocTracker.hpp"
#include "services/virtualMemoryTracker.hpp"
/*
* Base class that provides helpers
*/
class MemReporterBase : public StackObj {
private:
const size_t _scale; // report in this scale
outputStream* const _output; // destination
public:
// Default scale to use if no scale given.
static const size_t default_scale = K;
MemReporterBase(outputStream* out, size_t scale = default_scale) :
_scale(scale), _output(out)
{}
// Helper functions
// Calculate total reserved and committed amount
static size_t reserved_total(const MallocMemory* malloc, const VirtualMemory* vm);
static size_t committed_total(const MallocMemory* malloc, const VirtualMemory* vm);
protected:
inline outputStream* output() const {
return _output;
}
// Current reporting scale
size_t scale() const {
return _scale;
}
inline const char* current_scale() const {
return NMTUtil::scale_name(_scale);
}
// Convert memory amount in bytes to current reporting scale
inline size_t amount_in_current_scale(size_t amount) const {
return NMTUtil::amount_in_scale(amount, _scale);
}
// Convert diff amount in bytes to current reporting scale
inline long diff_in_current_scale(size_t s1, size_t s2) const {
long amount = (long)(s1 - s2);
long scale = (long)_scale;
amount = (amount > 0) ? (amount + scale / 2) : (amount - scale / 2);
return amount / scale;
}
// Print summary total, malloc and virtual memory
void print_total(size_t reserved, size_t committed) const;
void print_malloc(const MemoryCounter* c, MEMFLAGS flag = mtNone) const;
void print_virtual_memory(size_t reserved, size_t committed) const;
void print_malloc_line(const MemoryCounter* c) const;
void print_virtual_memory_line(size_t reserved, size_t committed) const;
void print_arena_line(const MemoryCounter* c) const;
void print_virtual_memory_region(const char* type, address base, size_t size) const;
};
/*
* The class is for generating summary tracking report.
*/
class MemSummaryReporter : public MemReporterBase {
private:
MallocMemorySnapshot* _malloc_snapshot;
VirtualMemorySnapshot* _vm_snapshot;
size_t _instance_class_count;
size_t _array_class_count;
public:
// This constructor is for normal reporting from a recent baseline.
MemSummaryReporter(MemBaseline& baseline, outputStream* output,
size_t scale = default_scale) : MemReporterBase(output, scale),
_malloc_snapshot(baseline.malloc_memory_snapshot()),
_vm_snapshot(baseline.virtual_memory_snapshot()),
_instance_class_count(baseline.instance_class_count()),
_array_class_count(baseline.array_class_count()) { }
// Generate summary report
virtual void report();
private:
// Report summary for each memory type
void report_summary_of_type(MEMFLAGS type, MallocMemory* malloc_memory,
VirtualMemory* virtual_memory);
void report_metadata(Metaspace::MetadataType type) const;
};
/*
* The class is for generating detail tracking report.
*/
class MemDetailReporter : public MemSummaryReporter {
private:
MemBaseline& _baseline;
public:
MemDetailReporter(MemBaseline& baseline, outputStream* output, size_t scale = default_scale) :
MemSummaryReporter(baseline, output, scale),
_baseline(baseline) { }
// Generate detail report.
// The report contains summary and detail sections.
virtual void report() {
MemSummaryReporter::report();
report_virtual_memory_map();
report_detail();
}
private:
// Report detail tracking data.
void report_detail();
// Report virtual memory map
void report_virtual_memory_map();
// Report malloc allocation sites; returns number of omitted sites
int report_malloc_sites();
// Report virtual memory reservation sites; returns number of omitted sites
int report_virtual_memory_allocation_sites();
// Report a virtual memory region
void report_virtual_memory_region(const ReservedMemoryRegion* rgn);
};
/*
* The class is for generating summary comparison report.
* It compares current memory baseline against an early baseline.
*/
class MemSummaryDiffReporter : public MemReporterBase {
protected:
MemBaseline& _early_baseline;
MemBaseline& _current_baseline;
public:
MemSummaryDiffReporter(MemBaseline& early_baseline, MemBaseline& current_baseline,
outputStream* output, size_t scale = default_scale) : MemReporterBase(output, scale),
_early_baseline(early_baseline), _current_baseline(current_baseline) {
assert(early_baseline.baseline_type() != MemBaseline::Not_baselined, "Not baselined");
assert(current_baseline.baseline_type() != MemBaseline::Not_baselined, "Not baselined");
}
// Generate summary comparison report
virtual void report_diff();
private:
// report the comparison of each memory type
void diff_summary_of_type(MEMFLAGS type,
const MallocMemory* early_malloc, const VirtualMemory* early_vm,
const MetaspaceCombinedStats& early_ms,
const MallocMemory* current_malloc, const VirtualMemory* current_vm,
const MetaspaceCombinedStats& current_ms) const;
protected:
void print_malloc_diff(size_t current_amount, size_t current_count,
size_t early_amount, size_t early_count, MEMFLAGS flags) const;
void print_virtual_memory_diff(size_t current_reserved, size_t current_committed,
size_t early_reserved, size_t early_committed) const;
void print_arena_diff(size_t current_amount, size_t current_count,
size_t early_amount, size_t early_count) const;
void print_metaspace_diff(const MetaspaceCombinedStats& current_ms,
const MetaspaceCombinedStats& early_ms) const;
void print_metaspace_diff(const char* header,
const MetaspaceStats& current_ms,
const MetaspaceStats& early_ms) const;
};
/*
* The class is for generating detail comparison report.
* It compares current memory baseline against an early baseline,
* both baselines have to be detail baseline.
*/
class MemDetailDiffReporter : public MemSummaryDiffReporter {
public:
MemDetailDiffReporter(MemBaseline& early_baseline, MemBaseline& current_baseline,
outputStream* output, size_t scale = default_scale) :
MemSummaryDiffReporter(early_baseline, current_baseline, output, scale) { }
// Generate detail comparison report
virtual void report_diff();
// Malloc allocation site comparison
void diff_malloc_sites() const;
// Virtual memory reservation site comparison
void diff_virtual_memory_sites() const;
// New malloc allocation site in recent baseline
void new_malloc_site (const MallocSite* site) const;
// The malloc allocation site is not in recent baseline
void old_malloc_site (const MallocSite* site) const;
// Compare malloc allocation site, it is in both baselines
void diff_malloc_site(const MallocSite* early, const MallocSite* current) const;
// New virtual memory allocation site in recent baseline
void new_virtual_memory_site (const VirtualMemoryAllocationSite* callsite) const;
// The virtual memory allocation site is not in recent baseline
void old_virtual_memory_site (const VirtualMemoryAllocationSite* callsite) const;
// Compare virtual memory allocation site, it is in both baseline
void diff_virtual_memory_site(const VirtualMemoryAllocationSite* early,
const VirtualMemoryAllocationSite* current) const;
void diff_malloc_site(const NativeCallStack* stack, size_t current_size,
size_t currrent_count, size_t early_size, size_t early_count, MEMFLAGS flags) const;
void diff_virtual_memory_site(const NativeCallStack* stack, size_t current_reserved,
size_t current_committed, size_t early_reserved, size_t early_committed, MEMFLAGS flag) const;
};
#endif // SHARE_SERVICES_MEMREPORTER_HPP
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