| 摘要 |
PROBLEM TO BE SOLVED: To provide a multiple sorting device performing sorting in a short time even in the case of a large number of entries of data aggregations and also in a short time without being affected by the use condition of a common bus, and to provide a traffic statistic system. SOLUTION: The multiple sorting device is improved which reads out the data aggregation from a data storage part via the common bus so as to multiple-sort the data aggregation. The improved device includes: an interface means connected to the common bus so as to read the data aggregation; a memory for working; a map generating means for storing each entry of the data aggregation read by the interface means in the prescribed address of the memory for working and generating a priority key arrangement map based on the priority key of the data aggregation in the memory for working; an exchange means for exchanging the place of each entry of the data aggregation in the memory for working; and a sorting means for sorting the data aggregations exchanged by the exchanging means with the use of a second key. COPYRIGHT: (C)2008,JPO&INPIT
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