Sandeep Gupta <[email protected]> writes:
> details regarding buffer usage:
> [ 100% buffer hit rate ]
Your database is evidently fully cached in memory. If that's the
operating mode you expect, you need to change the planner's cost
parameters, in particular reduce random_page_cost to equal seq_page_cost.
There is plenty of material about this on the PG wiki or in the
pgsql-performance archives.
regards, tom lane
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