注意，可以使用sync命令将缓冲区缓存中的请求发送到存储媒体(迫使所有未写的数据发送到设备驱动程序，进而发送到存储设备)。

Note that you can use the sync command to flush the buffer cache out to the storage media (force all unwritten data out to the device drivers and, subsequently, to the storage device).

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这种算法根据缓冲区队列长度来调整流媒体的发送速率，有效地避免了拥塞，提高了网络的利用率。

It adjusts streaming media traffic sources' data sending rate by using queues of router. It can effectively prevent congestion and improve the utilization percent of network.

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由于协议规范的限制，HLA下进行的多媒体播放效果较差，而接收缓冲区对于保证媒体流的播放质量起着关键的作用。

Because of the limit of protocol specification, the playing effect under HLA is weak. The receiving buffer plays an important role in making sure multimedia stream's playing quality.

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