Re: [DOCS] [HACKERS] Please Help: PostgreSQL Query Optimizer - Mailing list pgsql-chat

From Tom Lane
Subject Re: [DOCS] [HACKERS] Please Help: PostgreSQL Query Optimizer
Date
Msg-id 18706.1134333696@sss.pgh.pa.us
Whole thread Raw
In response to Please Help: PostgreSQL Query Optimizer  ("Anjan Kumar. A." <anjankumar@cse.iitb.ac.in>)
List pgsql-chat
Josh Berkus <josh@agliodbs.com> writes:
> I don't see why you're increasing the various cpu_* costs.

You missed the point Josh --- these numbers are relative to the cost of
a page fetch, so if page fetch is measured in microseconds instead of
milliseconds, then you *do* want to bump the CPU costs up.

            regards, tom lane

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