On 10/28/16 2:33 PM, Joshua D. Drake wrote:
* A very high shared_buffers (in newer releases, it is not uncommon to have many, many GB of)
Keep in mind that you might get very poor results if shared_buffers is large, but not large enough to fit the entire database. In that case buffer replacement will be *extremely* expensive. Some operations will use a different buffer replacement strategy, so you might be OK if some of the database doesn't fit in shared buffers; that will depend a lot on your access patterns.
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