Re: shared_buffers advice - Mailing list pgsql-performance

From Alvaro Herrera
Subject Re: shared_buffers advice
Date
Msg-id 20100316222922.GJ3037@alvh.no-ip.org
Whole thread Raw
In response to Re: shared_buffers advice  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-performance
Tom Lane escribió:
> Alvaro Herrera <alvherre@commandprompt.com> writes:
> > Tom Lane escribió:
> >> That's not going to do anything towards reducing the actual I/O volume.
> >> Although I suppose it might be useful if it just cuts the number of
> >> seeks.
>
> > Oh, they had no problems with I/O volume.  It was relation extension
> > lock that was heavily contended for them.
>
> Really?  I guess that serialized all the I/O ... I'll bet if we got rid
> of that locking somehow, they *would* have a problem with I/O volume.

Well, that would solve the problem as far as I'm concerned and they'd
have to start talking to their storage provider ;-)

--
Alvaro Herrera                                http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.

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