Thread: Logic of lowering seq_page_cost for SSD?

Logic of lowering seq_page_cost for SSD?

From
Josh Berkus
Date:
All,

I've often seen people lower seq_page_cost for SSD access.  This has the
effect of raising CPU costs relative to the costs of disk access.
However, CPUs have also gotten lots faster, so I'm not sure that results
in a better cost balance.

Has anyone done extensive testing on this?  What did you find?

--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com