Figure 8. The horizontal axis denotes the number of threads. The vertical axis denotes the time cost in seconds. When processing concurrent queries, on average, our system outperforms the commercial spatial database by a factor of 6.47.
Figure 8. The horizontal axis denotes the number of threads. The verticalaxis denotes the time cost in seconds. When processing concurrent queries,on average, our system outperforms the commercial spatial database by afactor of 6.47.