Fixed data pre-access method in peer network order system
A technology of an on-demand system and a peer-to-peer network, which is applied in the field of data prefetching in a network on-demand system to achieve the effects of reducing drag delay, improving accuracy, and reducing data prefetching overhead.
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[0055] This method has been applied in the actual peer-to-peer network on-demand system, and the general situation and parameter settings of the specific system are shown in Table 1 and Table 2. Table 1 gives the server and scale of the whole system. The whole system provides more than 1,500 files, and uses the shared bandwidth of 100Mbps to provide streaming media on-demand services with a code rate of 500~600Kbps for about 400 concurrent clients. Table 2 shows the parameter settings of the fixed-point prefetching method used by the system. The time interval (M) between prefetch points is set to 300 seconds, that is, 5 minutes. The number of consecutive time slots (L) included in each prefetch point is set to 10, that is, 10 seconds. The data window size (H) for sequential prefetch during playback is set to 300 seconds. The number of time slots (L) to be buffered after starting playback or dragging each time is also set to 10, that is, 10 seconds of data.
[0056] ...
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