src/hotspot/share/gc/shenandoah/shenandoahMemoryPool.cpp

@@ -1,7 +1,8 @@
  /*
   * Copyright (c) 2013, 2019, Red Hat, Inc. All rights reserved.
+  * Copyright Amazon.com Inc. 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.

@@ -22,18 +23,32 @@
   *
   */
  
  #include "precompiled.hpp"
  #include "gc/shenandoah/shenandoahMemoryPool.hpp"
+ #include "gc/shenandoah/shenandoahYoungGeneration.hpp"
+ #include "gc/shenandoah/shenandoahOldGeneration.hpp"
  
- ShenandoahMemoryPool::ShenandoahMemoryPool(ShenandoahHeap* heap) :
-         CollectedMemoryPool("Shenandoah",
+ ShenandoahMemoryPool::ShenandoahMemoryPool(ShenandoahHeap* heap,
+                                            const char* name) :
+         CollectedMemoryPool(name,
                              heap->initial_capacity(),
                              heap->max_capacity(),
                              true /* support_usage_threshold */),
                              _heap(heap) {}
  
+ ShenandoahMemoryPool::ShenandoahMemoryPool(ShenandoahHeap* heap,
+                                            const char* name,
+                                            size_t initial_capacity,
+                                            size_t max_capacity) :
+         CollectedMemoryPool(name,
+                             initial_capacity,
+                             max_capacity,
+                             true /* support_usage_threshold */),
+                             _heap(heap) {}
+ 
+ 
  MemoryUsage ShenandoahMemoryPool::get_memory_usage() {
    size_t initial   = initial_size();
    size_t max       = max_size();
    size_t used      = used_in_bytes();
    size_t committed = _heap->committed();

@@ -49,5 +64,41 @@
    committed = MAX2(used, committed);
    assert(used <= committed, "used: "      SIZE_FORMAT ", committed: " SIZE_FORMAT, used,      committed);
  
    return MemoryUsage(initial, used, committed, max);
  }
+ 
+ size_t ShenandoahMemoryPool::used_in_bytes() {
+   return _heap->used();
+ }
+ 
+ size_t ShenandoahMemoryPool::max_size() const {
+   return _heap->max_capacity();
+ }
+ 
+ ShenandoahGenerationalMemoryPool::ShenandoahGenerationalMemoryPool(ShenandoahHeap* heap, const char* name,
+                                                                    ShenandoahGeneration* generation) :
+         ShenandoahMemoryPool(heap, name, 0, heap->max_capacity()),
+         _generation(generation) { }
+ 
+ MemoryUsage ShenandoahGenerationalMemoryPool::get_memory_usage() {
+   size_t initial   = initial_size();
+   size_t max       = max_size();
+   size_t used      = used_in_bytes();
+   size_t committed = _generation->used_regions_size();
+ 
+   return MemoryUsage(initial, used, committed, max);
+ }
+ 
+ size_t ShenandoahGenerationalMemoryPool::used_in_bytes() {
+   return _generation->used();
+ }
+ 
+ ShenandoahYoungGenMemoryPool::ShenandoahYoungGenMemoryPool(ShenandoahHeap* heap) :
+         ShenandoahGenerationalMemoryPool(heap,
+                              "Shenandoah Young Gen",
+                              heap->young_generation()) { }
+ 
+ ShenandoahOldGenMemoryPool::ShenandoahOldGenMemoryPool(ShenandoahHeap* heap) :
+         ShenandoahGenerationalMemoryPool(heap,
+                              "Shenandoah Old Gen",
+                              heap->old_generation()) { }