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What are some guidelines for measuring query performance for my environment? — Vertica Forum

What are some guidelines for measuring query performance for my environment?

rjs_docsrjs_docs Vertica Employee Employee
edited April 2020 in General Discussion

In my environment, the shortest run query (2 mins) has the highest memory consumption (+100GB). Should I be concerned about that?
@bat @rbankula

From Optimizing Query Performance and Resource Pool Tuning.

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Answers

  • [Deleted User][Deleted User] Administrator

    When queries consume 100+ GB it is most likely doing may additional acquisitions to build hash table require for join or group by. You can try some of the tips and tricks from today presentation to analyse this and make possible optimizations .

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