Log growth policy decisions when verbose gc is enabled.

runtime/vm/pages.h

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_PAGES_H_
 #define VM_PAGES_H_
 
 #include "vm/freelist.h"
 #include "vm/globals.h"
 #include "vm/virtual_memory.h"
@@ skipping 66 matching lines @@
 };
 
 
 // The history holds the timing information of the last garbage collection
 // runs.
 class PageSpaceGarbageCollectionHistory {
  public:
   PageSpaceGarbageCollectionHistory();
   ~PageSpaceGarbageCollectionHistory() {}
 
-  void AddGarbageCollectionTime(uint64_t start, uint64_t end);
+  void AddGarbageCollectionTime(int64_t start, int64_t end);
 
   int GarbageCollectionTimeFraction();
 
  private:
-  static const uint32_t kHistoryLength = 4;
-  uint64_t start_[kHistoryLength];
-  uint64_t end_[kHistoryLength];
-  uint32_t index_;
+  static const intptr_t kHistoryLength = 4;
+  int64_t start_[kHistoryLength];
+  int64_t end_[kHistoryLength];
+  int64_t index_;

[Ivan Posva, 2012/06/22 20:50:37]

int or intptr_t? It should match whatever we use for kHistoryLength.

[cshapiro, 2012/06/22 21:17:27]

Switched to an inptr_t.  Done.

 
   DISALLOW_ALLOCATION();
   DISALLOW_COPY_AND_ASSIGN(PageSpaceGarbageCollectionHistory);
 };
 
 
 // If GC is able to reclaim more than heap_growth_ratio (in percent) memory
 // and if the relative GC time is below a given threshold,
 // then the heap is not grown when the next GC decision is made.
 // PageSpaceController controls the heap size.
@@ skipping 132 matching lines @@
   bool sweeping_;
 
   PageSpaceController page_space_controller_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(PageSpace);
 };
 
 }  // namespace dart
 
 #endif  // VM_PAGES_H_