Re: Script to compute randon page cost - Mailing list pgsql-hackers

From Hans-Jürgen Schönig
Subject Re: Script to compute randon page cost
Date
Msg-id 3D7C58CE.2030002@cybertec.at
Whole thread Raw
In response to Re: Script to compute randon page cost  ("Christopher Kings-Lynne" <chriskl@familyhealth.com.au>)
Responses Re: Script to compute randon page cost  (Brett Schwarz <brett_schwarz@yahoo.com>)
List pgsql-hackers
Christopher Kings-Lynne wrote:

>Assuming it's giving out correct information, there seems to be a lot of
>evidence for dropping the default random_page_cost to 1...
>
>Chris
>  
>
Some time ago Joe Conway suggest a tool based on a genetic algorithm 
which tries to find the best parameter settings.
As input the user could use a set of SQL statements. The algorithm will 
try to find those settings which lead to the lowest execution time based 
on the set of SQL.

What about something like that?
This way people could tune the database theirselves.
   Hans


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