BUFFER POOL——物理读、逻辑读和定时信息。

BUFFERPOOL - Physical reads, logical reads and timing information.

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结果表明，Hilbert 曲线的确能够更好地根据拓扑聚集数据，与 Z 排序相比，它可以减少 1.5% 的数据物理读。

The result shows that indeed the Hilbert curve clusters the data better according to their topology, giving us an additional 1.5% less data physical reads, compared to the Z-ordering.

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在基线上，我们看到必须从物理设备多读11%的页。

At the bottom line we see an additional 11% pages had to be read from the physical device.

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