jdk8-mips64-public/hotspot: src/share/vm/services/memBaseline.hpp@833b0f92429a (annotated)

src/share/vm/services/memBaseline.hpp@833b0f92429a (annotated)

src/share/vm/services/memBaseline.hpp

Wed, 27 Aug 2014 08:19:12 -0400

author: zgu
date: Wed, 27 Aug 2014 08:19:12 -0400
changeset 7074: 833b0f92429a
parent 4980: fbca7eaeac2e
child 7080: dd3939fe8424
permissions: -rw-r--r--

8046598: Scalable Native memory tracking development
Summary: Enhance scalability of native memory tracking
Reviewed-by: coleenp, ctornqvi, gtriantafill

 /*
  * Copyright (c) 2012, 2014, 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
   };
  private:
   // All baseline data is stored in this arena
   Arena*                  _arena;
   // Summary information
   MallocMemorySnapshot*   _malloc_memory_snapshot;
   VirtualMemorySnapshot*  _virtual_memory_snapshot;
   size_t               _class_count;
   // Allocation sites information
   // Malloc allocation sites
   LinkedListImpl<MallocSite, ResourceObj::ARENA>
                        _malloc_sites;
   // All virtual memory allocations
   LinkedListImpl<ReservedMemoryRegion, ResourceObj::ARENA>
                        _virtual_memory_allocations;
   // Virtual memory allocations by allocation sites, always in by_address
   // order
   LinkedListImpl<VirtualMemoryAllocationSite, ResourceObj::ARENA>
                        _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),
     _arena(NULL),
     _malloc_memory_snapshot(NULL),
     _virtual_memory_snapshot(NULL),
     _malloc_sites(NULL) {
   }
   ~MemBaseline() {
     reset();
     if (_arena != NULL) {
       delete _arena;
     }
   }
   bool baseline(bool summaryOnly = true);
   BaselineType baseline_type() const { return _baseline_type; }
   MallocMemorySnapshot* malloc_memory_snapshot() const {
     return _malloc_memory_snapshot;
   }
   VirtualMemorySnapshot* virtual_memory_snapshot() const {
     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");
     assert(_virtual_memory_snapshot != NULL, "No virtual memory snapshot");
     assert(_malloc_memory_snapshot != NULL,  "No malloc memory snapshot");
     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");
     assert(_virtual_memory_snapshot != NULL,
       "Not a snapshot");
     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");
     assert(_malloc_memory_snapshot != NULL, "Not yet baselined");
     return _malloc_memory_snapshot->total_arena();
   }
   size_t malloc_tracking_overhead() const {
     assert(baseline_type() != Not_baselined, "Not yet baselined");
     return _malloc_memory_snapshot->malloc_overhead()->size();
   }
   const MallocMemory* malloc_memory(MEMFLAGS flag) const {
     assert(_malloc_memory_snapshot != NULL, "Not a snapshot");
     return _malloc_memory_snapshot->by_type(flag);
   }
   const VirtualMemory* virtual_memory(MEMFLAGS flag) const {
     assert(_virtual_memory_snapshot != NULL, "Not a snapshot");
     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");
     assert(_malloc_memory_snapshot != NULL, "Baselined?");
     return _malloc_memory_snapshot->thread_count();
   }
   // reset the baseline for reuse
   void reset() {
     _baseline_type = Not_baselined;
     _malloc_memory_snapshot = NULL;
     _virtual_memory_snapshot = NULL;
     _class_count  = 0;
     _malloc_sites = NULL;
     _virtual_memory_sites = NULL;
     _virtual_memory_allocations = NULL;
     if (_arena != NULL) {
       _arena->destruct_contents();
     }
   }
  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();
   Arena* arena() { return _arena; }
   // 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 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

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/services/memBaseline.hpp@833b0f92429a (annotated)

src/share/vm/services/memBaseline.hpp