这个例程可以在原始数据的样本上运行以获得更快速的性能。

This routine can be run on a sample of the original data for faster performance.

youdao

为了使索引发挥最优性能，索引应该位于以10,000 R PM或者更快速度旋转的非系统硬盘上。

For maximum indexing performance, the index should reside on a nonsystem disk that rotates at 10,000 RPM or greater.

youdao

切分的好处（如分区一样）在于它可以压缩大型数据：单独的数据表在每个切分中相对较小，这样就可以支持更快速的读写速度，从而提高性能。

The benefit of sharding (like partitioning) is that it compacts big data: individual tables are smaller in each shard, which allows for faster reads and writes, which increases performance.

youdao