How We Tested: Benchmarking SQL Server

Our sister company, InfoWorld Consulting Services, ran the benchmark tests on SQL Server 7.0 using InfoWorld's enterprise database model. The database contained about 20G of data and 38 tables. The tests consisted of online transaction processing (OLTP) and Decision Support System (DSS) tasks. We tested at three workloads: light, moderate and heavy.

For OLTP, we used 30, 60 and 90 virtual clients to represent those workloads. The OLTP clients ran without think time. OLTP workload tasks mimic a real-world order entry system. For example, we looked up customer information, ordered items, adjusted inventory and paid a commission to a sales representative.

Our DSS workload consisted of nine queries, ranging from simple to complex. For example, our simplest query was a single table select with a "where" clause. Our most complex query joined multiple tables and included sorting and aggregates. We ran the DSS workload from four, eight and 12 clients to represent light, moderate and heavy workloads

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