3789983e89
Reviewed-by: darcy, ihse
235 lines
9.1 KiB
C++
235 lines
9.1 KiB
C++
/*
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* Copyright (c) 2012, 2015, 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_GC_SHARED_GCHEAPSUMMARY_HPP
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#define SHARE_VM_GC_SHARED_GCHEAPSUMMARY_HPP
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#include "memory/allocation.hpp"
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#include "memory/metaspaceChunkFreeListSummary.hpp"
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class VirtualSpaceSummary : public StackObj {
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HeapWord* _start;
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HeapWord* _committed_end;
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HeapWord* _reserved_end;
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public:
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VirtualSpaceSummary() :
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_start(NULL), _committed_end(NULL), _reserved_end(NULL) { }
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VirtualSpaceSummary(HeapWord* start, HeapWord* committed_end, HeapWord* reserved_end) :
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_start(start), _committed_end(committed_end), _reserved_end(reserved_end) { }
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HeapWord* start() const { return _start; }
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HeapWord* committed_end() const { return _committed_end; }
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HeapWord* reserved_end() const { return _reserved_end; }
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size_t committed_size() const { return (uintptr_t)_committed_end - (uintptr_t)_start; }
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size_t reserved_size() const { return (uintptr_t)_reserved_end - (uintptr_t)_start; }
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};
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class SpaceSummary : public StackObj {
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HeapWord* _start;
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HeapWord* _end;
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size_t _used;
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public:
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SpaceSummary() :
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_start(NULL), _end(NULL), _used(0) { }
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SpaceSummary(HeapWord* start, HeapWord* end, size_t used) :
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_start(start), _end(end), _used(used) { }
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HeapWord* start() const { return _start; }
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HeapWord* end() const { return _end; }
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size_t used() const { return _used; }
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size_t size() const { return (uintptr_t)_end - (uintptr_t)_start; }
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};
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class MetaspaceSizes : public StackObj {
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size_t _committed;
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size_t _used;
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size_t _reserved;
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public:
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MetaspaceSizes() : _committed(0), _used(0), _reserved(0) {}
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MetaspaceSizes(size_t committed, size_t used, size_t reserved) :
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_committed(committed), _used(used), _reserved(reserved) {}
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size_t committed() const { return _committed; }
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size_t used() const { return _used; }
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size_t reserved() const { return _reserved; }
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};
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class GCHeapSummary;
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class PSHeapSummary;
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class G1HeapSummary;
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class GCHeapSummaryVisitor {
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public:
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virtual void visit(const GCHeapSummary* heap_summary) const = 0;
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virtual void visit(const PSHeapSummary* heap_summary) const {}
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virtual void visit(const G1HeapSummary* heap_summary) const {}
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};
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class GCHeapSummary : public StackObj {
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VirtualSpaceSummary _heap;
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size_t _used;
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public:
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GCHeapSummary() :
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_heap(), _used(0) { }
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GCHeapSummary(VirtualSpaceSummary& heap_space, size_t used) :
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_heap(heap_space), _used(used) { }
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const VirtualSpaceSummary& heap() const { return _heap; }
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size_t used() const { return _used; }
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virtual void accept(GCHeapSummaryVisitor* visitor) const {
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visitor->visit(this);
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}
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};
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class PSHeapSummary : public GCHeapSummary {
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VirtualSpaceSummary _old;
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SpaceSummary _old_space;
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VirtualSpaceSummary _young;
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SpaceSummary _eden;
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SpaceSummary _from;
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SpaceSummary _to;
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public:
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PSHeapSummary(VirtualSpaceSummary& heap_space, size_t heap_used, VirtualSpaceSummary old, SpaceSummary old_space, VirtualSpaceSummary young, SpaceSummary eden, SpaceSummary from, SpaceSummary to) :
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GCHeapSummary(heap_space, heap_used), _old(old), _old_space(old_space), _young(young), _eden(eden), _from(from), _to(to) { }
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const VirtualSpaceSummary& old() const { return _old; }
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const SpaceSummary& old_space() const { return _old_space; }
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const VirtualSpaceSummary& young() const { return _young; }
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const SpaceSummary& eden() const { return _eden; }
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const SpaceSummary& from() const { return _from; }
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const SpaceSummary& to() const { return _to; }
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virtual void accept(GCHeapSummaryVisitor* visitor) const {
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visitor->visit(this);
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}
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};
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class G1HeapSummary : public GCHeapSummary {
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size_t _edenUsed;
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size_t _edenCapacity;
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size_t _survivorUsed;
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uint _numberOfRegions;
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public:
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G1HeapSummary(VirtualSpaceSummary& heap_space, size_t heap_used, size_t edenUsed, size_t edenCapacity, size_t survivorUsed, uint numberOfRegions) :
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GCHeapSummary(heap_space, heap_used), _edenUsed(edenUsed), _edenCapacity(edenCapacity), _survivorUsed(survivorUsed), _numberOfRegions(numberOfRegions) { }
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const size_t edenUsed() const { return _edenUsed; }
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const size_t edenCapacity() const { return _edenCapacity; }
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const size_t survivorUsed() const { return _survivorUsed; }
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const uint numberOfRegions() const { return _numberOfRegions; }
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virtual void accept(GCHeapSummaryVisitor* visitor) const {
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visitor->visit(this);
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}
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};
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class MetaspaceSummary : public StackObj {
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size_t _capacity_until_GC;
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MetaspaceSizes _meta_space;
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MetaspaceSizes _data_space;
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MetaspaceSizes _class_space;
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MetaspaceChunkFreeListSummary _metaspace_chunk_free_list_summary;
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MetaspaceChunkFreeListSummary _class_chunk_free_list_summary;
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public:
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MetaspaceSummary() :
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_capacity_until_GC(0),
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_meta_space(),
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_data_space(),
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_class_space(),
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_metaspace_chunk_free_list_summary(),
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_class_chunk_free_list_summary()
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{}
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MetaspaceSummary(size_t capacity_until_GC,
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const MetaspaceSizes& meta_space,
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const MetaspaceSizes& data_space,
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const MetaspaceSizes& class_space,
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const MetaspaceChunkFreeListSummary& metaspace_chunk_free_list_summary,
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const MetaspaceChunkFreeListSummary& class_chunk_free_list_summary) :
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_capacity_until_GC(capacity_until_GC),
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_meta_space(meta_space),
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_data_space(data_space),
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_class_space(class_space),
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_metaspace_chunk_free_list_summary(metaspace_chunk_free_list_summary),
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_class_chunk_free_list_summary(class_chunk_free_list_summary)
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{}
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size_t capacity_until_GC() const { return _capacity_until_GC; }
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const MetaspaceSizes& meta_space() const { return _meta_space; }
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const MetaspaceSizes& data_space() const { return _data_space; }
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const MetaspaceSizes& class_space() const { return _class_space; }
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const MetaspaceChunkFreeListSummary& metaspace_chunk_free_list_summary() const {
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return _metaspace_chunk_free_list_summary;
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}
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const MetaspaceChunkFreeListSummary& class_chunk_free_list_summary() const {
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return _class_chunk_free_list_summary;
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}
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};
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class G1EvacSummary : public StackObj {
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private:
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size_t _allocated; // Total allocated
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size_t _wasted; // of which wasted (internal fragmentation)
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size_t _undo_wasted; // of which wasted on undo (is not used for calculation of PLAB size)
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size_t _unused; // Unused in last buffer
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size_t _used;
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size_t _region_end_waste; // Number of words wasted due to skipping to the next region.
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uint _regions_filled; // Number of regions filled completely.
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size_t _direct_allocated; // Number of words allocated directly into the regions.
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// Number of words in live objects remaining in regions that ultimately suffered an
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// evacuation failure. This is used in the regions when the regions are made old regions.
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size_t _failure_used;
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// Number of words wasted in regions which failed evacuation. This is the sum of space
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// for objects successfully copied out of the regions (now dead space) plus waste at the
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// end of regions.
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size_t _failure_waste;
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public:
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G1EvacSummary(size_t allocated, size_t wasted, size_t undo_wasted, size_t unused,
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size_t used, size_t region_end_waste, uint regions_filled, size_t direct_allocated,
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size_t failure_used, size_t failure_waste) :
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_allocated(allocated), _wasted(wasted), _undo_wasted(undo_wasted), _unused(unused),
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_used(used), _region_end_waste(region_end_waste), _regions_filled(regions_filled),
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_direct_allocated(direct_allocated), _failure_used(failure_used), _failure_waste(failure_waste)
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{ }
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size_t allocated() const { return _allocated; }
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size_t wasted() const { return _wasted; }
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size_t undo_wasted() const { return _undo_wasted; }
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size_t unused() const { return _unused; }
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size_t used() const { return _used; }
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size_t region_end_waste() const { return _region_end_waste; }
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uint regions_filled() const { return _regions_filled; }
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size_t direct_allocated() const { return _direct_allocated; }
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size_t failure_used() const { return _failure_used; }
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size_t failure_waste() const { return _failure_waste; }
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};
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#endif // SHARE_VM_GC_SHARED_GCHEAPSUMMARY_HPP
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