@Override
  public void endDefragmentation(long start) {
    incDefragmentations();
    stats.incInt(defragmentationsInProgressId, -1);
    if (DistributionStats.enableClockStats) {
      stats.incLong(defragmentationTimeId, DistributionStats.getStatTime() - start);
    }
  }
Constructs a MemoryAllocator for off-heap storage.

@return MemoryAllocator for off-heap storage
geode-core/src/main/java/org/apache/geode/internal/offheap/OffHeapStorage.java