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Abstract : |
Abstract. A lightweight database system (LWDB) is a high-performance, application-specific DBMS. It differs from a general-purpose (heavyweight) DBMS in that it omits one or more features and specializes the implementationof its features to maximizeperformance. Although heavyweight monolithic and extensible DBMSs might be able to emulate LWDB capabilities, they cannot match LWDB performance. In this paper, we describe P2, a generator of lightweight DBMSs, and explain how it was used to reengineer a hand-coded, highly-tuned LWDB used in a production system compiler (LEAPS). We present results that show P2-generated LWDBs reduced the development time and code size of LEAPS by a factor of three and that the generated LWDBs executed substantially faster than versions built by hand or that use an extensible heavyweight DBMS., |
