Re: Moving postgresql.conf tunables into 2003...

От: Rod Taylor
Тема: Re: Moving postgresql.conf tunables into 2003...
Дата: ,
Msg-id: 1057263840.31736.22.camel@jester
(см: обсуждение, исходный текст)
Ответ на: Moving postgresql.conf tunables into 2003...  (Sean Chittenden)
Ответы: Re: Moving postgresql.conf tunables into 2003...  (Sean Chittenden)
Список: pgsql-performance

Скрыть дерево обсуждения

Moving postgresql.conf tunables into 2003...  (Sean Chittenden, )
 Re: Moving postgresql.conf tunables into 2003...  (Rod Taylor, )
  Re: Moving postgresql.conf tunables into 2003...  (Sean Chittenden, )
 Re: Moving postgresql.conf tunables into 2003...  ("scott.marlowe", )
  Re: Moving postgresql.conf tunables into 2003...  (Brian Hirt, )
   Re: Moving postgresql.conf tunables into 2003...  (Sean Chittenden, )
    Re: Moving postgresql.conf tunables into 2003...  (Matthew Hixson, )
  Re: Moving postgresql.conf tunables into 2003...  (Sean Chittenden, )
   Re: Moving postgresql.conf tunables into 2003...  (Tom Lane, )
    Re: Moving postgresql.conf tunables into 2003...  (Sean Chittenden, )
 Re: Moving postgresql.conf tunables into 2003...  ("Michael Mattox", )
  Re: Moving postgresql.conf tunables into 2003...  (Sean Chittenden, )
   Re: Moving postgresql.conf tunables into 2003...  (Martin Foster, )
   Re: Moving postgresql.conf tunables into 2003...  (Bruce Momjian, )
 Re: Moving postgresql.conf tunables into 2003...  (Ron, )
 Re: Moving postgresql.conf tunables into 2003...  (Tom Lane, )
  Re: Moving postgresql.conf tunables into 2003...  (Sean Chittenden, )
   Re: Moving postgresql.conf tunables into 2003...  (Rod Taylor, )
   Re: Moving postgresql.conf tunables into 2003...  (Manfred Koizar, )
    Re: Moving postgresql.conf tunables into 2003...  (Sean Chittenden, )
     Re: Moving postgresql.conf tunables into 2003...  (Manfred Koizar, )
      Re: Moving postgresql.conf tunables into 2003...  (Sean Chittenden, )
       Re: Moving postgresql.conf tunables into 2003...  (Tom Lane, )
        Index correlation (was: Moving postgresql.conf tunables into 2003... )  (Manfred Koizar, )
     Use of multipart index with "IN"  (Rob Messer, )
      Re: Use of multipart index with "IN"  (Tom Lane, )
 Re: Moving postgresql.conf tunables into 2003...  (Josh Berkus, )
  Re: Moving postgresql.conf tunables into 2003...  (Tom Lane, )
  Re: Moving postgresql.conf tunables into 2003...  (Tom Lane, )
  Re: Moving postgresql.conf tunables into 2003...  (Tom Lane, )
  Re: Moving postgresql.conf tunables into 2003...  (Sean Chittenden, )
   Re: Moving postgresql.conf tunables into 2003...  (Josh Berkus, )
    Re: Moving postgresql.conf tunables into 2003...  (Sean Chittenden, )
     Re: Moving postgresql.conf tunables into 2003...  (Josh Berkus, )
   Re: Moving postgresql.conf tunables into 2003...  ("Matthew Nuzum", )
    Re: Moving postgresql.conf tunables into 2003...  (Michael Pohl, )
     Re: Moving postgresql.conf tunables into 2003...  (Martin Foster, )
     Re: Moving postgresql.conf tunables into 2003...  (Bruce Momjian, )
    Re: Moving postgresql.conf tunables into 2003...  (Chris Travers, )
     Re: Moving postgresql.conf tunables into 2003...  ("Jim C. Nasby", )
   Re: Moving postgresql.conf tunables into 2003...  (Andrew Sullivan, )
    Re: Moving postgresql.conf tunables into 2003...  ("Matthew Nuzum", )
     Re: Moving postgresql.conf tunables into 2003...  ("Michael Mattox", )
     Re: Moving postgresql.conf tunables into 2003...  (Tom Lane, )
      Re: Moving postgresql.conf tunables into 2003...  (Kaarel, )
       Re: Moving postgresql.conf tunables into 2003...  ("scott.marlowe", )
        Re: Moving postgresql.conf tunables into 2003...  (Martin Foster, )
  Re: Moving postgresql.conf tunables into 2003...  ("Matthew Nuzum", )

On Thu, 2003-07-03 at 19:05, Sean Chittenden wrote:
> What are the odds of going through and revamping some of the tunables
> in postgresql.conf for the 7.4 release?  I was just working with
> someone on IRC and on their 7800 RPM IDE drives, their
> random_page_cost was ideally suited to be 0.32: a far cry from 4.

I find it very very hard to believe a random read was cheaper than a
sequential read.  Something is shifty in your testing.

Вложения

В списке pgsql-performance по дате сообщения:

От: Tom Lane
Дата:
Сообщение: Re: Moving postgresql.conf tunables into 2003...
От: Josh Berkus
Дата:
Сообщение: Re: Moving postgresql.conf tunables into 2003...