zgu@3900: /*
zgu@4980:  * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
zgu@3900:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
zgu@3900:  *
zgu@3900:  * This code is free software; you can redistribute it and/or modify it
zgu@3900:  * under the terms of the GNU General Public License version 2 only, as
zgu@3900:  * published by the Free Software Foundation.
zgu@3900:  *
zgu@3900:  * This code is distributed in the hope that it will be useful, but WITHOUT
zgu@3900:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
zgu@3900:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
zgu@3900:  * version 2 for more details (a copy is included in the LICENSE file that
zgu@3900:  * accompanied this code).
zgu@3900:  *
zgu@3900:  * You should have received a copy of the GNU General Public License version
zgu@3900:  * 2 along with this work; if not, write to the Free Software Foundation,
zgu@3900:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
zgu@3900:  *
zgu@3900:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
zgu@3900:  * or visit www.oracle.com if you need additional information or have any
zgu@3900:  * questions.
zgu@3900:  *
zgu@3900:  */
zgu@3900: #include "precompiled.hpp"
zgu@3900: #include "memory/allocation.hpp"
zgu@4980: #include "runtime/safepoint.hpp"
zgu@4980: #include "runtime/thread.inline.hpp"
zgu@3900: #include "services/memBaseline.hpp"
zgu@3900: #include "services/memTracker.hpp"
zgu@3900: 
zgu@4980: 
zgu@3900: MemType2Name MemBaseline::MemType2NameMap[NUMBER_OF_MEMORY_TYPE] = {
zgu@3900:   {mtJavaHeap,   "Java Heap"},
zgu@3900:   {mtClass,      "Class"},
zgu@3900:   {mtThreadStack,"Thread Stack"},
zgu@3900:   {mtThread,     "Thread"},
zgu@3900:   {mtCode,       "Code"},
zgu@3900:   {mtGC,         "GC"},
zgu@3900:   {mtCompiler,   "Compiler"},
zgu@3900:   {mtInternal,   "Internal"},
zgu@3900:   {mtOther,      "Other"},
zgu@3900:   {mtSymbol,     "Symbol"},
zgu@3900:   {mtNMT,        "Memory Tracking"},
zgu@3900:   {mtChunk,      "Pooled Free Chunks"},
zgu@4193:   {mtClassShared,"Shared spaces for classes"},
ctornqvi@4512:   {mtTest,       "Test"},
zgu@3900:   {mtNone,       "Unknown"}  // It can happen when type tagging records are lagging
zgu@3900:                              // behind
zgu@3900: };
zgu@3900: 
zgu@3900: MemBaseline::MemBaseline() {
zgu@3900:   _baselined = false;
zgu@3900: 
zgu@3900:   for (int index = 0; index < NUMBER_OF_MEMORY_TYPE; index ++) {
zgu@3900:     _malloc_data[index].set_type(MemType2NameMap[index]._flag);
zgu@3900:     _vm_data[index].set_type(MemType2NameMap[index]._flag);
zgu@3900:     _arena_data[index].set_type(MemType2NameMap[index]._flag);
zgu@3900:   }
zgu@3900: 
zgu@3900:   _malloc_cs = NULL;
zgu@3900:   _vm_cs = NULL;
zgu@4193:   _vm_map = NULL;
zgu@3900: 
zgu@3900:   _number_of_classes = 0;
zgu@3900:   _number_of_threads = 0;
zgu@3900: }
zgu@3900: 
zgu@3900: 
zgu@3900: void MemBaseline::clear() {
zgu@3900:   if (_malloc_cs != NULL) {
zgu@3900:     delete _malloc_cs;
zgu@3900:     _malloc_cs = NULL;
zgu@3900:   }
zgu@3900: 
zgu@3900:   if (_vm_cs != NULL) {
zgu@3900:     delete _vm_cs;
zgu@3900:     _vm_cs = NULL;
zgu@3900:   }
zgu@3900: 
zgu@4193:   if (_vm_map != NULL) {
zgu@4193:     delete _vm_map;
zgu@4193:     _vm_map = NULL;
zgu@4193:   }
zgu@4193: 
zgu@3900:   reset();
zgu@3900: }
zgu@3900: 
zgu@3900: 
zgu@3900: void MemBaseline::reset() {
zgu@3900:   _baselined = false;
zgu@3900:   _total_vm_reserved = 0;
zgu@3900:   _total_vm_committed = 0;
zgu@3900:   _total_malloced = 0;
zgu@3900:   _number_of_classes = 0;
zgu@3900: 
zgu@3900:   if (_malloc_cs != NULL) _malloc_cs->clear();
zgu@3900:   if (_vm_cs != NULL) _vm_cs->clear();
zgu@4193:   if (_vm_map != NULL) _vm_map->clear();
zgu@3900: 
zgu@3900:   for (int index = 0; index < NUMBER_OF_MEMORY_TYPE; index ++) {
zgu@3900:     _malloc_data[index].clear();
zgu@3900:     _vm_data[index].clear();
zgu@3900:     _arena_data[index].clear();
zgu@3900:   }
zgu@3900: }
zgu@3900: 
zgu@3900: MemBaseline::~MemBaseline() {
zgu@4193:   clear();
zgu@3900: }
zgu@3900: 
zgu@3900: // baseline malloc'd memory records, generate overall summary and summaries by
zgu@3900: // memory types
zgu@3900: bool MemBaseline::baseline_malloc_summary(const MemPointerArray* malloc_records) {
zgu@4193:   MemPointerArrayIteratorImpl malloc_itr((MemPointerArray*)malloc_records);
zgu@4193:   MemPointerRecord* malloc_ptr = (MemPointerRecord*)malloc_itr.current();
zgu@3900:   size_t used_arena_size = 0;
zgu@3900:   int index;
zgu@4193:   while (malloc_ptr != NULL) {
zgu@4193:     index = flag2index(FLAGS_TO_MEMORY_TYPE(malloc_ptr->flags()));
zgu@4193:     size_t size = malloc_ptr->size();
zgu@4274:     if (malloc_ptr->is_arena_memory_record()) {
zgu@4274:       // We do have anonymous arenas, they are either used as value objects,
zgu@4274:       // which are embedded inside other objects, or used as stack objects.
zgu@4274:       _arena_data[index].inc(size);
zgu@4274:       used_arena_size += size;
zgu@4274:     } else {
zgu@4274:       _total_malloced += size;
zgu@4274:       _malloc_data[index].inc(size);
zgu@4274:       if (malloc_ptr->is_arena_record()) {
zgu@4274:         // see if arena memory record present
zgu@4274:         MemPointerRecord* next_malloc_ptr = (MemPointerRecordEx*)malloc_itr.peek_next();
zgu@4274:         if (next_malloc_ptr->is_arena_memory_record()) {
zgu@4274:           assert(next_malloc_ptr->is_memory_record_of_arena(malloc_ptr),
zgu@4274:              "Arena records do not match");
zgu@4274:           size = next_malloc_ptr->size();
zgu@4274:           _arena_data[index].inc(size);
zgu@4274:           used_arena_size += size;
zgu@4274:           malloc_itr.next();
zgu@4274:         }
zgu@3900:       }
zgu@3900:     }
zgu@4193:     malloc_ptr = (MemPointerRecordEx*)malloc_itr.next();
zgu@3900:   }
zgu@3900: 
zgu@3900:   // substract used arena size to get size of arena chunk in free list
zgu@3900:   index = flag2index(mtChunk);
zgu@3900:   _malloc_data[index].reduce(used_arena_size);
zgu@3900:   // we really don't know how many chunks in free list, so just set to
zgu@3900:   // 0
zgu@3900:   _malloc_data[index].overwrite_counter(0);
zgu@3900: 
zgu@3900:   return true;
zgu@3900: }
zgu@3900: 
zgu@4980: // check if there is a safepoint in progress, if so, block the thread
zgu@4980: // for the safepoint
zgu@4980: void MemBaseline::check_safepoint(JavaThread* thr) {
zgu@4980:   if (SafepointSynchronize::is_synchronizing()) {
zgu@4992:     // grab and drop the SR_lock to honor the safepoint protocol
zgu@4992:     MutexLocker ml(thr->SR_lock());
zgu@4980:   }
zgu@4980: }
zgu@4980: 
zgu@3900: // baseline mmap'd memory records, generate overall summary and summaries by
zgu@3900: // memory types
zgu@3900: bool MemBaseline::baseline_vm_summary(const MemPointerArray* vm_records) {
zgu@4193:   MemPointerArrayIteratorImpl vm_itr((MemPointerArray*)vm_records);
zgu@4193:   VMMemRegion* vm_ptr = (VMMemRegion*)vm_itr.current();
zgu@3900:   int index;
zgu@4193:   while (vm_ptr != NULL) {
zgu@4193:     if (vm_ptr->is_reserved_region()) {
zgu@4193:       index = flag2index(FLAGS_TO_MEMORY_TYPE(vm_ptr->flags()));
zgu@3900:     // we use the number of thread stack to count threads
zgu@4193:       if (IS_MEMORY_TYPE(vm_ptr->flags(), mtThreadStack)) {
zgu@3900:       _number_of_threads ++;
zgu@3900:     }
zgu@4193:       _total_vm_reserved += vm_ptr->size();
zgu@4193:       _vm_data[index].inc(vm_ptr->size(), 0);
zgu@4193:     } else {
zgu@4193:       _total_vm_committed += vm_ptr->size();
zgu@4193:       _vm_data[index].inc(0, vm_ptr->size());
zgu@4193:     }
zgu@4193:     vm_ptr = (VMMemRegion*)vm_itr.next();
zgu@3900:   }
zgu@3900:   return true;
zgu@3900: }
zgu@3900: 
zgu@3900: // baseline malloc'd memory by callsites, but only the callsites with memory allocation
zgu@3900: // over 1KB are stored.
zgu@3900: bool MemBaseline::baseline_malloc_details(const MemPointerArray* malloc_records) {
zgu@3900:   assert(MemTracker::track_callsite(), "detail tracking is off");
zgu@3900: 
zgu@4193:   MemPointerArrayIteratorImpl malloc_itr(const_cast<MemPointerArray*>(malloc_records));
zgu@4193:   MemPointerRecordEx* malloc_ptr = (MemPointerRecordEx*)malloc_itr.current();
zgu@4193:   MallocCallsitePointer malloc_callsite;
zgu@3900: 
zgu@4193:   // initailize malloc callsite array
zgu@3900:   if (_malloc_cs == NULL) {
zgu@3900:     _malloc_cs = new (std::nothrow) MemPointerArrayImpl<MallocCallsitePointer>(64);
zgu@3900:     // out of native memory
zgu@4193:     if (_malloc_cs == NULL || _malloc_cs->out_of_memory()) {
zgu@3900:       return false;
zgu@3900:     }
zgu@3900:   } else {
zgu@3900:     _malloc_cs->clear();
zgu@3900:   }
zgu@3900: 
zgu@4193:   MemPointerArray* malloc_data = const_cast<MemPointerArray*>(malloc_records);
zgu@4193: 
zgu@4193:   // sort into callsite pc order. Details are aggregated by callsites
zgu@4193:   malloc_data->sort((FN_SORT)malloc_sort_by_pc);
zgu@4193:   bool ret = true;
zgu@4193: 
zgu@3900:   // baseline memory that is totaled over 1 KB
zgu@4193:   while (malloc_ptr != NULL) {
zgu@4274:     if (!MemPointerRecord::is_arena_memory_record(malloc_ptr->flags())) {
zgu@3900:       // skip thread stacks
zgu@4193:       if (!IS_MEMORY_TYPE(malloc_ptr->flags(), mtThreadStack)) {
zgu@4193:         if (malloc_callsite.addr() != malloc_ptr->pc()) {
zgu@4193:           if ((malloc_callsite.amount()/K) > 0) {
zgu@4193:             if (!_malloc_cs->append(&malloc_callsite)) {
zgu@4193:               ret = false;
zgu@4193:               break;
zgu@4193:             }
zgu@4193:           }
zgu@4193:           malloc_callsite = MallocCallsitePointer(malloc_ptr->pc());
zgu@4193:         }
zgu@4193:         malloc_callsite.inc(malloc_ptr->size());
zgu@4193:       }
zgu@4193:     }
zgu@4193:     malloc_ptr = (MemPointerRecordEx*)malloc_itr.next();
zgu@4193:   }
zgu@4193: 
zgu@4193:   // restore to address order. Snapshot malloc data is maintained in memory
zgu@4193:   // address order.
zgu@4193:   malloc_data->sort((FN_SORT)malloc_sort_by_addr);
zgu@4193: 
zgu@4193:   if (!ret) {
zgu@3900:               return false;
zgu@3900:             }
zgu@4193:   // deal with last record
zgu@4193:   if (malloc_callsite.addr() != 0 && (malloc_callsite.amount()/K) > 0) {
zgu@4193:     if (!_malloc_cs->append(&malloc_callsite)) {
zgu@3900:       return false;
zgu@3900:     }
zgu@3900:   }
zgu@3900:   return true;
zgu@3900: }
zgu@3900: 
zgu@3900: // baseline mmap'd memory by callsites
zgu@3900: bool MemBaseline::baseline_vm_details(const MemPointerArray* vm_records) {
zgu@3900:   assert(MemTracker::track_callsite(), "detail tracking is off");
zgu@3900: 
zgu@4193:   VMCallsitePointer  vm_callsite;
zgu@4193:   VMCallsitePointer* cur_callsite = NULL;
zgu@4193:   MemPointerArrayIteratorImpl vm_itr((MemPointerArray*)vm_records);
zgu@4193:   VMMemRegionEx* vm_ptr = (VMMemRegionEx*)vm_itr.current();
zgu@3900: 
zgu@4193:   // initialize virtual memory map array
zgu@4193:   if (_vm_map == NULL) {
zgu@4193:     _vm_map = new (std::nothrow) MemPointerArrayImpl<VMMemRegionEx>(vm_records->length());
zgu@4193:    if (_vm_map == NULL || _vm_map->out_of_memory()) {
zgu@4193:      return false;
zgu@4193:    }
zgu@4193:   } else {
zgu@4193:     _vm_map->clear();
zgu@4193:   }
zgu@4193: 
zgu@4193:   // initialize virtual memory callsite array
zgu@3900:   if (_vm_cs == NULL) {
zgu@3900:     _vm_cs = new (std::nothrow) MemPointerArrayImpl<VMCallsitePointer>(64);
zgu@4193:     if (_vm_cs == NULL || _vm_cs->out_of_memory()) {
zgu@3900:       return false;
zgu@3900:     }
zgu@3900:   } else {
zgu@3900:     _vm_cs->clear();
zgu@3900:   }
zgu@3900: 
zgu@4193:   // consolidate virtual memory data
zgu@4193:   VMMemRegionEx*     reserved_rec = NULL;
zgu@4193:   VMMemRegionEx*     committed_rec = NULL;
zgu@4193: 
zgu@4193:   // vm_ptr is coming in increasing base address order
zgu@4193:   while (vm_ptr != NULL) {
zgu@4193:     if (vm_ptr->is_reserved_region()) {
zgu@4193:       // consolidate reserved memory regions for virtual memory map.
zgu@4193:       // The criteria for consolidation is:
zgu@4193:       // 1. two adjacent reserved memory regions
zgu@4193:       // 2. belong to the same memory type
zgu@4193:       // 3. reserved from the same callsite
zgu@4193:       if (reserved_rec == NULL ||
zgu@4193:         reserved_rec->base() + reserved_rec->size() != vm_ptr->addr() ||
zgu@4193:         FLAGS_TO_MEMORY_TYPE(reserved_rec->flags()) != FLAGS_TO_MEMORY_TYPE(vm_ptr->flags()) ||
zgu@4193:         reserved_rec->pc() != vm_ptr->pc()) {
zgu@4193:         if (!_vm_map->append(vm_ptr)) {
zgu@3900:         return false;
zgu@3900:       }
zgu@4193:         // inserted reserved region, we need the pointer to the element in virtual
zgu@4193:         // memory map array.
zgu@4193:         reserved_rec = (VMMemRegionEx*)_vm_map->at(_vm_map->length() - 1);
zgu@4193:       } else {
zgu@4193:         reserved_rec->expand_region(vm_ptr->addr(), vm_ptr->size());
zgu@3900:     }
zgu@4193: 
zgu@4193:       if (cur_callsite != NULL && !_vm_cs->append(cur_callsite)) {
zgu@3900:       return false;
zgu@3900:     }
zgu@4193:       vm_callsite = VMCallsitePointer(vm_ptr->pc());
zgu@4193:       cur_callsite = &vm_callsite;
zgu@4193:       vm_callsite.inc(vm_ptr->size(), 0);
zgu@4193:     } else {
zgu@4193:       // consolidate committed memory regions for virtual memory map
zgu@4193:       // The criterial is:
zgu@4193:       // 1. two adjacent committed memory regions
zgu@4193:       // 2. committed from the same callsite
zgu@4193:       if (committed_rec == NULL ||
zgu@4193:         committed_rec->base() + committed_rec->size() != vm_ptr->addr() ||
zgu@4193:         committed_rec->pc() != vm_ptr->pc()) {
zgu@4193:         if (!_vm_map->append(vm_ptr)) {
zgu@4193:           return false;
zgu@4980:         }
zgu@4193:         committed_rec = (VMMemRegionEx*)_vm_map->at(_vm_map->length() - 1);
zgu@4193:     } else {
zgu@4193:         committed_rec->expand_region(vm_ptr->addr(), vm_ptr->size());
zgu@4193:       }
zgu@4193:       vm_callsite.inc(0, vm_ptr->size());
zgu@4193:     }
zgu@4193:     vm_ptr = (VMMemRegionEx*)vm_itr.next();
zgu@4193:   }
zgu@4193:   // deal with last record
zgu@4193:   if (cur_callsite != NULL && !_vm_cs->append(cur_callsite)) {
zgu@4193:     return false;
zgu@4193:   }
zgu@4193: 
zgu@4193:   // sort it into callsite pc order. Details are aggregated by callsites
zgu@4193:   _vm_cs->sort((FN_SORT)bl_vm_sort_by_pc);
zgu@4193: 
zgu@4193:   // walk the array to consolidate record by pc
zgu@4193:   MemPointerArrayIteratorImpl itr(_vm_cs);
zgu@4193:   VMCallsitePointer* callsite_rec = (VMCallsitePointer*)itr.current();
zgu@4193:   VMCallsitePointer* next_rec = (VMCallsitePointer*)itr.next();
zgu@4193:   while (next_rec != NULL) {
zgu@4193:     assert(callsite_rec != NULL, "Sanity check");
zgu@4193:     if (next_rec->addr() == callsite_rec->addr()) {
zgu@4193:       callsite_rec->inc(next_rec->reserved_amount(), next_rec->committed_amount());
zgu@4193:       itr.remove();
zgu@4193:       next_rec = (VMCallsitePointer*)itr.current();
zgu@4193:     } else {
zgu@4193:       callsite_rec = next_rec;
zgu@4193:       next_rec = (VMCallsitePointer*)itr.next();
zgu@4193:     }
zgu@4193:   }
zgu@4193: 
zgu@3900:   return true;
zgu@3900: }
zgu@3900: 
zgu@3900: // baseline a snapshot. If summary_only = false, memory usages aggregated by
zgu@3900: // callsites are also baselined.
zgu@4980: // The method call can be lengthy, especially when detail tracking info is
zgu@4980: // requested. So the method checks for safepoint explicitly.
zgu@3900: bool MemBaseline::baseline(MemSnapshot& snapshot, bool summary_only) {
zgu@4980:   Thread* THREAD = Thread::current();
zgu@4980:   assert(THREAD->is_Java_thread(), "must be a JavaThread");
zgu@4980:   MutexLocker snapshot_locker(snapshot._lock);
zgu@3900:   reset();
zgu@4980:   _baselined = baseline_malloc_summary(snapshot._alloc_ptrs);
zgu@4980:   if (_baselined) {
zgu@4980:     check_safepoint((JavaThread*)THREAD);
zgu@4980:     _baselined = baseline_vm_summary(snapshot._vm_ptrs);
zgu@4980:   }
zgu@4400:   _number_of_classes = snapshot.number_of_classes();
zgu@3900: 
zgu@3900:   if (!summary_only && MemTracker::track_callsite() && _baselined) {
zgu@4980:     check_safepoint((JavaThread*)THREAD);
zgu@4980:     _baselined =  baseline_malloc_details(snapshot._alloc_ptrs);
zgu@4980:     if (_baselined) {
zgu@4980:       check_safepoint((JavaThread*)THREAD);
zgu@4980:       _baselined =  baseline_vm_details(snapshot._vm_ptrs);
zgu@4980:     }
zgu@3900:   }
zgu@3900:   return _baselined;
zgu@3900: }
zgu@3900: 
zgu@3900: 
zgu@3900: int MemBaseline::flag2index(MEMFLAGS flag) const {
zgu@3900:   for (int index = 0; index < NUMBER_OF_MEMORY_TYPE; index ++) {
zgu@3900:     if (MemType2NameMap[index]._flag == flag) {
zgu@3900:       return index;
zgu@3900:     }
zgu@3900:   }
zgu@3900:   assert(false, "no type");
zgu@3900:   return -1;
zgu@3900: }
zgu@3900: 
zgu@3900: const char* MemBaseline::type2name(MEMFLAGS type) {
zgu@3900:   for (int index = 0; index < NUMBER_OF_MEMORY_TYPE; index ++) {
zgu@3900:     if (MemType2NameMap[index]._flag == type) {
zgu@3900:       return MemType2NameMap[index]._name;
zgu@3900:     }
zgu@3900:   }
zgu@4193:   assert(false, err_msg("bad type %x", type));
zgu@3900:   return NULL;
zgu@3900: }
zgu@3900: 
zgu@3900: 
zgu@3900: MemBaseline& MemBaseline::operator=(const MemBaseline& other) {
zgu@3900:   _total_malloced = other._total_malloced;
zgu@3900:   _total_vm_reserved = other._total_vm_reserved;
zgu@3900:   _total_vm_committed = other._total_vm_committed;
zgu@3900: 
zgu@3900:   _baselined = other._baselined;
zgu@3900:   _number_of_classes = other._number_of_classes;
zgu@3900: 
zgu@3900:   for (int index = 0; index < NUMBER_OF_MEMORY_TYPE; index ++) {
zgu@3900:     _malloc_data[index] = other._malloc_data[index];
zgu@3900:     _vm_data[index] = other._vm_data[index];
zgu@3900:     _arena_data[index] = other._arena_data[index];
zgu@3900:   }
zgu@3900: 
zgu@3900:   if (MemTracker::track_callsite()) {
zgu@3900:     assert(_malloc_cs != NULL && _vm_cs != NULL, "out of memory");
zgu@3900:     assert(other._malloc_cs != NULL && other._vm_cs != NULL,
zgu@3900:            "not properly baselined");
zgu@3900:     _malloc_cs->clear();
zgu@3900:     _vm_cs->clear();
zgu@3900:     int index;
zgu@3900:     for (index = 0; index < other._malloc_cs->length(); index ++) {
zgu@3900:       _malloc_cs->append(other._malloc_cs->at(index));
zgu@3900:     }
zgu@3900: 
zgu@3900:     for (index = 0; index < other._vm_cs->length(); index ++) {
zgu@3900:       _vm_cs->append(other._vm_cs->at(index));
zgu@3900:     }
zgu@3900:   }
zgu@3900:   return *this;
zgu@3900: }
zgu@3900: 
zgu@3900: /* compare functions for sorting */
zgu@3900: 
zgu@3900: // sort snapshot malloc'd records in callsite pc order
zgu@3900: int MemBaseline::malloc_sort_by_pc(const void* p1, const void* p2) {
zgu@3900:   assert(MemTracker::track_callsite(),"Just check");
zgu@3900:   const MemPointerRecordEx* mp1 = (const MemPointerRecordEx*)p1;
zgu@3900:   const MemPointerRecordEx* mp2 = (const MemPointerRecordEx*)p2;
zgu@3900:   return UNSIGNED_COMPARE(mp1->pc(), mp2->pc());
zgu@3900: }
zgu@3900: 
zgu@3900: // sort baselined malloc'd records in size order
zgu@3900: int MemBaseline::bl_malloc_sort_by_size(const void* p1, const void* p2) {
zgu@3900:   assert(MemTracker::is_on(), "Just check");
zgu@3900:   const MallocCallsitePointer* mp1 = (const MallocCallsitePointer*)p1;
zgu@3900:   const MallocCallsitePointer* mp2 = (const MallocCallsitePointer*)p2;
zgu@3900:   return UNSIGNED_COMPARE(mp2->amount(), mp1->amount());
zgu@3900: }
zgu@3900: 
zgu@3900: // sort baselined malloc'd records in callsite pc order
zgu@3900: int MemBaseline::bl_malloc_sort_by_pc(const void* p1, const void* p2) {
zgu@3900:   assert(MemTracker::is_on(), "Just check");
zgu@3900:   const MallocCallsitePointer* mp1 = (const MallocCallsitePointer*)p1;
zgu@3900:   const MallocCallsitePointer* mp2 = (const MallocCallsitePointer*)p2;
zgu@3900:   return UNSIGNED_COMPARE(mp1->addr(), mp2->addr());
zgu@3900: }
zgu@3900: 
zgu@3900: 
zgu@3900: // sort baselined mmap'd records in size (reserved size) order
zgu@3900: int MemBaseline::bl_vm_sort_by_size(const void* p1, const void* p2) {
zgu@3900:   assert(MemTracker::is_on(), "Just check");
zgu@3900:   const VMCallsitePointer* mp1 = (const VMCallsitePointer*)p1;
zgu@3900:   const VMCallsitePointer* mp2 = (const VMCallsitePointer*)p2;
zgu@3900:   return UNSIGNED_COMPARE(mp2->reserved_amount(), mp1->reserved_amount());
zgu@3900: }
zgu@3900: 
zgu@3900: // sort baselined mmap'd records in callsite pc order
zgu@3900: int MemBaseline::bl_vm_sort_by_pc(const void* p1, const void* p2) {
zgu@3900:   assert(MemTracker::is_on(), "Just check");
zgu@3900:   const VMCallsitePointer* mp1 = (const VMCallsitePointer*)p1;
zgu@3900:   const VMCallsitePointer* mp2 = (const VMCallsitePointer*)p2;
zgu@3900:   return UNSIGNED_COMPARE(mp1->addr(), mp2->addr());
zgu@3900: }
zgu@3900: 
zgu@3900: 
zgu@3900: // sort snapshot malloc'd records in memory block address order
zgu@3900: int MemBaseline::malloc_sort_by_addr(const void* p1, const void* p2) {
zgu@3900:   assert(MemTracker::is_on(), "Just check");
zgu@3900:   const MemPointerRecord* mp1 = (const MemPointerRecord*)p1;
zgu@3900:   const MemPointerRecord* mp2 = (const MemPointerRecord*)p2;
zgu@3900:   int delta = UNSIGNED_COMPARE(mp1->addr(), mp2->addr());
zgu@3900:   assert(delta != 0, "dup pointer");
zgu@3900:   return delta;
zgu@3900: }
zgu@3900: