是更快的写一大块的数据一次硬盘然后编写大量的小块。 缓冲区用于积累这些块。
The efficient way to write to a device is to write a bigger chunk of data at a time.
让我们考虑硬盘作为输出设备。 写入硬盘内存相比非常缓慢。 是更快的写一大块的数据一次硬盘然后编写大量的小块。 缓冲区用于积累这些块。
The output device might be a hard disk, for instance, and writing to the hard disk involved moving the write head around and waiting for the platter to spin to the right place.
是更快的写一大块的数据一次硬盘然后编写大量的小块。
It is much faster to write a big chunk of data at once on the HDD then to write a lot of small chunks.
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