In practice, buffering may occur at various other levels, such as on the hard disk itself, the controller, or the kernel disk drive device driver, so ours may not make much of a difference.

实际上，缓冲可能发生在其它不同的级别，例如硬盘本身、控制器或内核磁盘驱动设备驱动程序，所以我们的工作可能对性能影响不大。

youdao

In practice, buffering may occur at various other levels, such as on the hard disk itself, the controller, or the kernel disk drive device driver, so ours may not make much of a difference.

实际上，缓冲可能发生在其它不同的级别，例如硬盘本身、控制器或内核磁盘驱动设备驱动程序，所以我们的工作可能对性能影响不大。

youdao