However, to ensure the effectiveness of PVT experiments, we need the help of high-performancesampling equipment to ensure the fidelity of the samples in the sampling process.
而为了确保PVT实验的有效性，就需要借助高性能的取样装备，确保采样过程中样品的保真度。
2
Compared with no sampling, page-level sampling significantly improves performance.
与不进行抽样相比，页级抽样极大地提高了性能。
3
To improve the performance and lower the storage requirements of this routine, the estimation can be based on a subset of the data using extremely fast sampling on the page level.