--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/shared/gcHeapSummary.hpp Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,234 @@
+/*
+ * Copyright (c) 2012, 2015, 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_GC_SHARED_GCHEAPSUMMARY_HPP
+#define SHARE_VM_GC_SHARED_GCHEAPSUMMARY_HPP
+
+#include "memory/allocation.hpp"
+#include "memory/metaspaceChunkFreeListSummary.hpp"
+
+class VirtualSpaceSummary : public StackObj {
+ HeapWord* _start;
+ HeapWord* _committed_end;
+ HeapWord* _reserved_end;
+public:
+ VirtualSpaceSummary() :
+ _start(NULL), _committed_end(NULL), _reserved_end(NULL) { }
+ VirtualSpaceSummary(HeapWord* start, HeapWord* committed_end, HeapWord* reserved_end) :
+ _start(start), _committed_end(committed_end), _reserved_end(reserved_end) { }
+
+ HeapWord* start() const { return _start; }
+ HeapWord* committed_end() const { return _committed_end; }
+ HeapWord* reserved_end() const { return _reserved_end; }
+ size_t committed_size() const { return (uintptr_t)_committed_end - (uintptr_t)_start; }
+ size_t reserved_size() const { return (uintptr_t)_reserved_end - (uintptr_t)_start; }
+};
+
+class SpaceSummary : public StackObj {
+ HeapWord* _start;
+ HeapWord* _end;
+ size_t _used;
+public:
+ SpaceSummary() :
+ _start(NULL), _end(NULL), _used(0) { }
+ SpaceSummary(HeapWord* start, HeapWord* end, size_t used) :
+ _start(start), _end(end), _used(used) { }
+
+ HeapWord* start() const { return _start; }
+ HeapWord* end() const { return _end; }
+ size_t used() const { return _used; }
+ size_t size() const { return (uintptr_t)_end - (uintptr_t)_start; }
+};
+
+class MetaspaceSizes : public StackObj {
+ size_t _committed;
+ size_t _used;
+ size_t _reserved;
+
+ public:
+ MetaspaceSizes() : _committed(0), _used(0), _reserved(0) {}
+ MetaspaceSizes(size_t committed, size_t used, size_t reserved) :
+ _committed(committed), _used(used), _reserved(reserved) {}
+
+ size_t committed() const { return _committed; }
+ size_t used() const { return _used; }
+ size_t reserved() const { return _reserved; }
+};
+
+class GCHeapSummary;
+class PSHeapSummary;
+class G1HeapSummary;
+
+class GCHeapSummaryVisitor {
+ public:
+ virtual void visit(const GCHeapSummary* heap_summary) const = 0;
+ virtual void visit(const PSHeapSummary* heap_summary) const {}
+ virtual void visit(const G1HeapSummary* heap_summary) const {}
+};
+
+class GCHeapSummary : public StackObj {
+ VirtualSpaceSummary _heap;
+ size_t _used;
+
+ public:
+ GCHeapSummary() :
+ _heap(), _used(0) { }
+ GCHeapSummary(VirtualSpaceSummary& heap_space, size_t used) :
+ _heap(heap_space), _used(used) { }
+
+ const VirtualSpaceSummary& heap() const { return _heap; }
+ size_t used() const { return _used; }
+
+ virtual void accept(GCHeapSummaryVisitor* visitor) const {
+ visitor->visit(this);
+ }
+};
+
+class PSHeapSummary : public GCHeapSummary {
+ VirtualSpaceSummary _old;
+ SpaceSummary _old_space;
+ VirtualSpaceSummary _young;
+ SpaceSummary _eden;
+ SpaceSummary _from;
+ SpaceSummary _to;
+ public:
+ PSHeapSummary(VirtualSpaceSummary& heap_space, size_t heap_used, VirtualSpaceSummary old, SpaceSummary old_space, VirtualSpaceSummary young, SpaceSummary eden, SpaceSummary from, SpaceSummary to) :
+ GCHeapSummary(heap_space, heap_used), _old(old), _old_space(old_space), _young(young), _eden(eden), _from(from), _to(to) { }
+ const VirtualSpaceSummary& old() const { return _old; }
+ const SpaceSummary& old_space() const { return _old_space; }
+ const VirtualSpaceSummary& young() const { return _young; }
+ const SpaceSummary& eden() const { return _eden; }
+ const SpaceSummary& from() const { return _from; }
+ const SpaceSummary& to() const { return _to; }
+
+ virtual void accept(GCHeapSummaryVisitor* visitor) const {
+ visitor->visit(this);
+ }
+};
+
+class G1HeapSummary : public GCHeapSummary {
+ size_t _edenUsed;
+ size_t _edenCapacity;
+ size_t _survivorUsed;
+ uint _numberOfRegions;
+ public:
+ G1HeapSummary(VirtualSpaceSummary& heap_space, size_t heap_used, size_t edenUsed, size_t edenCapacity, size_t survivorUsed, uint numberOfRegions) :
+ GCHeapSummary(heap_space, heap_used), _edenUsed(edenUsed), _edenCapacity(edenCapacity), _survivorUsed(survivorUsed), _numberOfRegions(numberOfRegions) { }
+ const size_t edenUsed() const { return _edenUsed; }
+ const size_t edenCapacity() const { return _edenCapacity; }
+ const size_t survivorUsed() const { return _survivorUsed; }
+ const uint numberOfRegions() const { return _numberOfRegions; }
+
+ virtual void accept(GCHeapSummaryVisitor* visitor) const {
+ visitor->visit(this);
+ }
+};
+
+class MetaspaceSummary : public StackObj {
+ size_t _capacity_until_GC;
+ MetaspaceSizes _meta_space;
+ MetaspaceSizes _data_space;
+ MetaspaceSizes _class_space;
+ MetaspaceChunkFreeListSummary _metaspace_chunk_free_list_summary;
+ MetaspaceChunkFreeListSummary _class_chunk_free_list_summary;
+
+ public:
+ MetaspaceSummary() :
+ _capacity_until_GC(0),
+ _meta_space(),
+ _data_space(),
+ _class_space(),
+ _metaspace_chunk_free_list_summary(),
+ _class_chunk_free_list_summary()
+ {}
+ MetaspaceSummary(size_t capacity_until_GC,
+ const MetaspaceSizes& meta_space,
+ const MetaspaceSizes& data_space,
+ const MetaspaceSizes& class_space,
+ const MetaspaceChunkFreeListSummary& metaspace_chunk_free_list_summary,
+ const MetaspaceChunkFreeListSummary& class_chunk_free_list_summary) :
+ _capacity_until_GC(capacity_until_GC),
+ _meta_space(meta_space),
+ _data_space(data_space),
+ _class_space(class_space),
+ _metaspace_chunk_free_list_summary(metaspace_chunk_free_list_summary),
+ _class_chunk_free_list_summary(class_chunk_free_list_summary)
+ {}
+
+ size_t capacity_until_GC() const { return _capacity_until_GC; }
+ const MetaspaceSizes& meta_space() const { return _meta_space; }
+ const MetaspaceSizes& data_space() const { return _data_space; }
+ const MetaspaceSizes& class_space() const { return _class_space; }
+
+ const MetaspaceChunkFreeListSummary& metaspace_chunk_free_list_summary() const {
+ return _metaspace_chunk_free_list_summary;
+ }
+
+ const MetaspaceChunkFreeListSummary& class_chunk_free_list_summary() const {
+ return _class_chunk_free_list_summary;
+ }
+
+};
+
+class G1EvacSummary : public StackObj {
+private:
+ size_t _allocated; // Total allocated
+ size_t _wasted; // of which wasted (internal fragmentation)
+ size_t _undo_wasted; // of which wasted on undo (is not used for calculation of PLAB size)
+ size_t _unused; // Unused in last buffer
+ size_t _used;
+
+ size_t _region_end_waste; // Number of words wasted due to skipping to the next region.
+ uint _regions_filled; // Number of regions filled completely.
+ size_t _direct_allocated; // Number of words allocated directly into the regions.
+
+ // Number of words in live objects remaining in regions that ultimately suffered an
+ // evacuation failure. This is used in the regions when the regions are made old regions.
+ size_t _failure_used;
+ // Number of words wasted in regions which failed evacuation. This is the sum of space
+ // for objects successfully copied out of the regions (now dead space) plus waste at the
+ // end of regions.
+ size_t _failure_waste;
+public:
+ G1EvacSummary(size_t allocated, size_t wasted, size_t undo_wasted, size_t unused,
+ size_t used, size_t region_end_waste, uint regions_filled, size_t direct_allocated,
+ size_t failure_used, size_t failure_waste) :
+ _allocated(allocated), _wasted(wasted), _undo_wasted(undo_wasted), _unused(unused),
+ _used(used), _region_end_waste(region_end_waste), _regions_filled(regions_filled),
+ _direct_allocated(direct_allocated), _failure_used(failure_used), _failure_waste(failure_waste)
+ { }
+
+ size_t allocated() const { return _allocated; }
+ size_t wasted() const { return _wasted; }
+ size_t undo_wasted() const { return _undo_wasted; }
+ size_t unused() const { return _unused; }
+ size_t used() const { return _used; }
+ size_t region_end_waste() const { return _region_end_waste; }
+ uint regions_filled() const { return _regions_filled; }
+ size_t direct_allocated() const { return _direct_allocated; }
+ size_t failure_used() const { return _failure_used; }
+ size_t failure_waste() const { return _failure_waste; }
+};
+
+#endif // SHARE_VM_GC_SHARED_GCHEAPSUMMARY_HPP