Respect accumulative old generation memory limit in all spaces.

Before the max_old_space_size was set for each space, which is not intuitive and not what we want. There is still a miss match between capacity and actual committed memory which should be cleaned up in a follow up cl.

BUG=

Review URL: https://codereview.chromium.org/979783002

Cr-Commit-Position: refs/heads/master@{#26985}

diff --git a/src/heap/heap.cc b/src/heap/heap.cc
index 26cffc8..16b5dec 100644 (file)
--- a/src/heap/heap.cc
+++ b/src/heap/heap.cc
@@ -177,16 +177,23 @@ intptr_t Heap::Capacity() {
 }
 
 
-intptr_t Heap::CommittedMemory() {
+intptr_t Heap::CommittedOldGenerationMemory() {
   if (!HasBeenSetUp()) return 0;
 
-  return new_space_.CommittedMemory() + old_pointer_space_->CommittedMemory() +
+  return old_pointer_space_->CommittedMemory() +
          old_data_space_->CommittedMemory() + code_space_->CommittedMemory() +
          map_space_->CommittedMemory() + cell_space_->CommittedMemory() +
          property_cell_space_->CommittedMemory() + lo_space_->Size();
 }
 
 
+intptr_t Heap::CommittedMemory() {
+  if (!HasBeenSetUp()) return 0;
+
+  return new_space_.CommittedMemory() + CommittedOldGenerationMemory();
+}
+
+
 size_t Heap::CommittedPhysicalMemory() {
   if (!HasBeenSetUp()) return 0;
 

diff --git a/src/heap/heap.h b/src/heap/heap.h
index 943a30f..1b16ced 100644 (file)
--- a/src/heap/heap.h
+++ b/src/heap/heap.h
@@ -607,6 +607,9 @@ class Heap {
   // Returns the amount of memory currently committed for the heap.
   intptr_t CommittedMemory();
 
+  // Returns the amount of memory currently committed for the old space.
+  intptr_t CommittedOldGenerationMemory();
+
   // Returns the amount of executable memory currently committed for the heap.
   intptr_t CommittedMemoryExecutable();
 
@@ -690,6 +693,12 @@ class Heap {
     return old_data_space_->allocation_limit_address();
   }
 
+  // TODO(hpayer): There is still a missmatch between capacity and actual
+  // committed memory size.
+  bool CanExpandOldGeneration(int size) {
+    return (CommittedOldGenerationMemory() + size) < MaxOldGenerationSize();
+  }
+
   // Returns a deep copy of the JavaScript object.
   // Properties and elements are copied too.
   // Optionally takes an AllocationSite to be appended in an AllocationMemento.

diff --git a/src/heap/spaces.cc b/src/heap/spaces.cc
index 30ae2b4..39e5100 100644 (file)
--- a/src/heap/spaces.cc
+++ b/src/heap/spaces.cc
@@ -1021,13 +1021,12 @@ Object* PagedSpace::FindObject(Address addr) {
 
 bool PagedSpace::CanExpand() {
   DCHECK(max_capacity_ % AreaSize() == 0);
-
-  if (Capacity() == max_capacity_) return false;
-
-  DCHECK(Capacity() < max_capacity_);
+  DCHECK(Capacity() <= heap()->MaxOldGenerationSize());
+  DCHECK(heap()->CommittedOldGenerationMemory() <=
+         heap()->MaxOldGenerationSize());
 
   // Are we going to exceed capacity for this space?
-  if ((Capacity() + Page::kPageSize) > max_capacity_) return false;
+  if (!heap()->CanExpandOldGeneration(Page::kPageSize)) return false;
 
   return true;
 }
@@ -1049,7 +1048,9 @@ bool PagedSpace::Expand() {
   // Pages created during bootstrapping may contain immortal immovable objects.
   if (!heap()->deserialization_complete()) p->MarkNeverEvacuate();
 
-  DCHECK(Capacity() <= max_capacity_);
+  DCHECK(Capacity() <= heap()->MaxOldGenerationSize());
+  DCHECK(heap()->CommittedOldGenerationMemory() <=
+         heap()->MaxOldGenerationSize());
 
   p->InsertAfter(anchor_.prev_page());