Method ReadReverse

src/leveldb/benchmarks/db_bench.cc:754–765

  }

  void ReadReverse(ThreadState* thread) {
    Iterator* iter = db_->NewIterator(ReadOptions());
    int i = 0;
    int64_t bytes = 0;
    for (iter->SeekToLast(); i < reads_ && iter->Valid(); iter->Prev()) {
      bytes += iter->key().size() + iter->value().size();
      thread->stats.FinishedSingleOp();
      ++i;
    }
    delete iter;
    thread->stats.AddBytes(bytes);
  }

  void ReadRandom(ThreadState* thread) {
    ReadOptions options;