ÐIn the past decade, the exponential growth in commodity CPU's speed has far outpaced advances in memory latency. A second trend is that CPU performance advances are not only brought by increased clock rate, but also by increasing parallelism inside the CPU. Current database systems have not yet adapted to these trends and show poor utilization of both CPU and memory resources on current hardwa...

In traditional database management systems, recovery activities, like checkpointing and restart, are performed in a quiescent state where no transactions are active. This approach impairs the performance of on-line transaction processing systems. Recovery related overhead is particularly troublesome in an environment where a large volatile memory is used. The appealing alternative is to perform...

Lossless data compression techniques can potentially free up more than 50% of the memory resources. However, previously proposed schemes suffer from high access costs. The proposed main-memory compression scheme practically eliminates performance losses of previous schemes by exploiting a simple and yet effective compression scheme, a highly-efficient structure for locating a compressed block i...