Christoph Anton Mitterer <christoph.anton.mitte...@physik.uni-muenchen.de> wrote: > Well I'm still very unsure on how to configure many values... > We've increased e.g. shared_buffers, temp_buffers, work_mem, > maintenance_work_mem, max_stack_depth... and this greatly improved > performance. But I can hardly judge to which values I should > increase all these (and a few more). Maybe the ellipses cover these, but wal_buffers and checkpoint_segments should generally be adjusted, too. I almost always need to tweak some of the costing factors, too; but appropriate settings there depend not only on your hardware, but also your schema, data, and application mix. The best source of information on this that I know is Greg Smith's "PostgreSQL 9.0 High Performance" book. (It also discusses older versions, so don't let the "9.0" in the title put you off.) Some of these settings are best tuned through an iterative process of monitoring while making small adjustments. http://www.postgresql.org/docs/books/ -Kevin
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