PostgreSQL Portland Performance Practice Project - Database Test 2 Tuning
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This document summarizes the results of tuning a PostgreSQL database using the tool pgtune. It shows the performance improvements achieved by configuring various PostgreSQL configuration options like shared_buffers and work_mem as recommended by pgtune. It also discusses the effects of changing the effective_cache_size parameter and physical disk layout optimizations on an older system with multiple disk arrays. Overall, pgtune helped improve performance by 7% and separating data files from logs saw further gains.
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