--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/services/memBaseline.hpp Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,203 @@
+/*
+ * Copyright (c) 2012, 2017, 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
+
+#if INCLUDE_NMT
+
+#include "memory/allocation.hpp"
+#include "runtime/mutex.hpp"
+#include "services/mallocSiteTable.hpp"
+#include "services/mallocTracker.hpp"
+#include "services/nmtCommon.hpp"
+#include "services/virtualMemoryTracker.hpp"
+#include "utilities/linkedlist.hpp"
+
+typedef LinkedListIterator<MallocSite> MallocSiteIterator;
+typedef LinkedListIterator<VirtualMemoryAllocationSite> VirtualMemorySiteIterator;
+typedef LinkedListIterator<ReservedMemoryRegion> VirtualMemoryAllocationIterator;
+
+/*
+ * Baseline a memory snapshot
+ */
+class MemBaseline VALUE_OBJ_CLASS_SPEC {
+ public:
+ enum BaselineThreshold {
+ SIZE_THRESHOLD = K // Only allocation size over this threshold will be baselined.
+ };
+
+ enum BaselineType {
+ Not_baselined,
+ Summary_baselined,
+ Detail_baselined
+ };
+
+ enum SortingOrder {
+ by_address, // by memory address
+ by_size, // by memory size
+ by_site, // by call site where the memory is allocated from
+ by_site_and_type // by call site and memory type
+ };
+
+ private:
+ // Summary information
+ MallocMemorySnapshot _malloc_memory_snapshot;
+ VirtualMemorySnapshot _virtual_memory_snapshot;
+
+ size_t _class_count;
+
+ // Allocation sites information
+ // Malloc allocation sites
+ LinkedListImpl<MallocSite> _malloc_sites;
+
+ // All virtual memory allocations
+ LinkedListImpl<ReservedMemoryRegion> _virtual_memory_allocations;
+
+ // Virtual memory allocations by allocation sites, always in by_address
+ // order
+ LinkedListImpl<VirtualMemoryAllocationSite> _virtual_memory_sites;
+
+ SortingOrder _malloc_sites_order;
+ SortingOrder _virtual_memory_sites_order;
+
+ BaselineType _baseline_type;
+
+ public:
+ // create a memory baseline
+ MemBaseline():
+ _baseline_type(Not_baselined),
+ _class_count(0) {
+ }
+
+ bool baseline(bool summaryOnly = true);
+
+ BaselineType baseline_type() const { return _baseline_type; }
+
+ MallocMemorySnapshot* malloc_memory_snapshot() {
+ return &_malloc_memory_snapshot;
+ }
+
+ VirtualMemorySnapshot* virtual_memory_snapshot() {
+ return &_virtual_memory_snapshot;
+ }
+
+ MallocSiteIterator malloc_sites(SortingOrder order);
+ VirtualMemorySiteIterator virtual_memory_sites(SortingOrder order);
+
+ // Virtual memory allocation iterator always returns in virtual memory
+ // base address order.
+ VirtualMemoryAllocationIterator virtual_memory_allocations() {
+ assert(!_virtual_memory_allocations.is_empty(), "Not detail baseline");
+ return VirtualMemoryAllocationIterator(_virtual_memory_allocations.head());
+ }
+
+ // Total reserved memory = total malloc'd memory + total reserved virtual
+ // memory
+ size_t total_reserved_memory() const {
+ assert(baseline_type() != Not_baselined, "Not yet baselined");
+ size_t amount = _malloc_memory_snapshot.total() +
+ _virtual_memory_snapshot.total_reserved();
+ return amount;
+ }
+
+ // Total committed memory = total malloc'd memory + total committed
+ // virtual memory
+ size_t total_committed_memory() const {
+ assert(baseline_type() != Not_baselined, "Not yet baselined");
+ size_t amount = _malloc_memory_snapshot.total() +
+ _virtual_memory_snapshot.total_committed();
+ return amount;
+ }
+
+ size_t total_arena_memory() const {
+ assert(baseline_type() != Not_baselined, "Not yet baselined");
+ return _malloc_memory_snapshot.total_arena();
+ }
+
+ size_t malloc_tracking_overhead() const {
+ assert(baseline_type() != Not_baselined, "Not yet baselined");
+ MemBaseline* bl = const_cast<MemBaseline*>(this);
+ return bl->_malloc_memory_snapshot.malloc_overhead()->size();
+ }
+
+ MallocMemory* malloc_memory(MEMFLAGS flag) {
+ assert(baseline_type() != Not_baselined, "Not yet baselined");
+ return _malloc_memory_snapshot.by_type(flag);
+ }
+
+ VirtualMemory* virtual_memory(MEMFLAGS flag) {
+ assert(baseline_type() != Not_baselined, "Not yet baselined");
+ return _virtual_memory_snapshot.by_type(flag);
+ }
+
+
+ size_t class_count() const {
+ assert(baseline_type() != Not_baselined, "Not yet baselined");
+ return _class_count;
+ }
+
+ size_t thread_count() const {
+ assert(baseline_type() != Not_baselined, "Not yet baselined");
+ return _malloc_memory_snapshot.thread_count();
+ }
+
+ // reset the baseline for reuse
+ void reset() {
+ _baseline_type = Not_baselined;
+ // _malloc_memory_snapshot and _virtual_memory_snapshot are copied over.
+ _class_count = 0;
+
+ _malloc_sites.clear();
+ _virtual_memory_sites.clear();
+ _virtual_memory_allocations.clear();
+ }
+
+ private:
+ // Baseline summary information
+ bool baseline_summary();
+
+ // Baseline allocation sites (detail tracking only)
+ bool baseline_allocation_sites();
+
+ // Aggregate virtual memory allocation by allocation sites
+ bool aggregate_virtual_memory_allocation_sites();
+
+ // Sorting allocation sites in different orders
+ // Sort allocation sites in size order
+ void malloc_sites_to_size_order();
+ // Sort allocation sites in call site address order
+ void malloc_sites_to_allocation_site_order();
+ // Sort allocation sites in call site address and memory type order
+ void malloc_sites_to_allocation_site_and_type_order();
+
+ // Sort allocation sites in reserved size order
+ void virtual_memory_sites_to_size_order();
+ // Sort allocation sites in call site address order
+ void virtual_memory_sites_to_reservation_site_order();
+};
+
+#endif // INCLUDE_NMT
+
+#endif // SHARE_VM_SERVICES_MEM_BASELINE_HPP