在写入方面的中间缓冲区则可以让写入过程异步完成。

The intermediate buffer on the write side allows the write to complete asynchronously.

youdao

中间缓冲区拷贝—甚至于那些隐藏在内核内的拷贝—都会产生一定的开销。

Intermediate buffer copies - even those hidden in the kernel - can have a measurable cost.

youdao

使用中间内核缓冲区(而不是直接将数据传输到用户缓冲区)看起来可能有点效率低下。

Use of the intermediate kernel buffer (rather than a direct transfer of the data into the user buffer) might seem inefficient.

youdao