From: Joshua D. Drake <jd@commandprompt.com>
To: Dave Cramer <pg@fastcrypt.com>
Cc: Merlin Moncure <mmoncure@gmail.com>
Cc: Guillaume Cottenceau <gc@mnc.ch>
Cc: pgsql-performance@postgresql.org
Subject: Re: increasing shared buffers: how much should be removed
Date: Fri, 01 Sep 2006 17:24:18 -0700
Message-ID: <44F8CF32.9040606@commandprompt.com> (raw)
In-Reply-To: <E3AD303F-06FE-4034-A176-3F532720A386@fastcrypt.com>
References: <87veo7a5dn.fsf@meuh.mnc.lan>
<b42b73150609011249p612ccd27gbb5ee4db9b5b10f4@mail.gmail.com>
<E3AD303F-06FE-4034-A176-3F532720A386@fastcrypt.com>
>>
>> I think 'shared buffers' is one of the most overrated settings from a
>> performance standpoint. however you must ensure there is enough for
>> things the server does besides caching. It used to be a bigger deal
>> than it is in modern versionf of postgresql modern operating systems.
Previous to 8.1 I would agree with you, but as of 8.1 it is probably the
most underrated.
Joshua D. Drake
>>
>> merlin
>>
> So if shared buffers is the most overrated, what do you consider the
> proper way of tuning ?
>> ---------------------------(end of broadcast)---------------------------
>> TIP 9: In versions below 8.0, the planner will ignore your desire to
>> choose an index scan if your joining column's datatypes do not
>> match
>>
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 1: if posting/reading through Usenet, please send an appropriate
> subscribe-nomail command to majordomo@postgresql.org so that your
> message can get through to the mailing list cleanly
>
--
=== The PostgreSQL Company: Command Prompt, Inc. ===
Sales/Support: +1.503.667.4564 || 24x7/Emergency: +1.800.492.2240
Providing the most comprehensive PostgreSQL solutions since 1997
http://www.commandprompt.com/
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-performance@postgresql.org
Cc: jd@commandprompt.com, pg@fastcrypt.com, mmoncure@gmail.com, gc@mnc.ch
Subject: Re: increasing shared buffers: how much should be removed
In-Reply-To: <44F8CF32.9040606@commandprompt.com>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox