This mode should be used if your application will always read a fixed number of characters, or if the connected device sends bursts of characters.
这种模式可以用在每次读取固定长度字符串的程序中，或者所连接的设备会突然送出大量字符的情况下。
By doing so, it becomes easy to quickly assess the performance gains and decide whether this option should be kept enabled or not in production mode.
这样，您就可以轻松地快速评估性能改进并决定是否要在生产模式中启用这个选项。
With the interactive mode (described below), this disk should not be required, but it's nice to have just in case you get out of your depth.
使用交互模式(后面将描述)则不需要这张磁盘，不过最好拥有一张以备急需时使用。
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