A Speed-up Method of Light RDBMS SQLite for Stream Processing Utilizing Multi-core CPU Configurations

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  • マルチコアCPU構成を活かしたストリーム処理向け軽量RDBM SQLiteの高速化方式
  • マルチコア CPU コウセイ オ イカシタ ストリーム ショリ ムケ ケイリョウ RDBM SQLite ノ コウソクカ ホウシキ

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The data generated at a very high rate by sensors and RFIDs are required to be handled by continuous queries keeping real time response. Because of its purpose, DSMSs are used in several cases of these large scale systems. On the other hand, sensor terminal systems include light RDBMSs generally in many cases. So if light RDBMSs can handle the high rate data directly, it is convenient for several applications. This paper proposes a speed-up method of stream processing by using a light RDBMS SQLite without any special modifications. If DSMSs are categorized by performance such as large, medium and small scale, this method aims at a small or medium scale performance. The database performance mainly depends on storage access time, so this proposed method adopts a memory database, a bulk store records technique and parallel processing while taking advantage of multi-core CPU configurations of terminal systems.

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