18.6. Conclusion
The Michigan benchmark that is described in this chapter is a micro-benchmark that can be used to tune the performance of XML query-processing systems. In formulating this benchmark, we paid careful attention to the techniques that we use in generating the data and the query specification, so as to make it very easy for a benchmark user to identify any performance problems. The data generation process uses random numbers sparingly and still captures key characteristics of XML data sets, such as varying fanout and depth of the data tree. The queries are carefully chosen to focus on individual query operations and to demonstrate any performance problems related to the implementation of the algorithms used to evaluate the query ...
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