code: private void prefetch(long storageIndex) {
          long startIndex = storageIndex / BYTES_IN_DATA;
          // Inc to next bucket
          startIndex += 128;
  
          if (mPrefetchedBuckets.contains(startIndex)) {
              mPrefetchedBuckets.remove(startIndex);
              return;
          }
  
          for (int i = 0; i < BUCKETS_TO_PREFETCH; i++) {
              if ((startIndex + i) > (mNodeNumbers / 128)) {
                  return;
              }
  
              mRtx.moveTo(startIndex);
              startIndex += 128;
          }
      }
docs: Prefetch buckets if necessary