Re: What is the most optimal config parameters to keep stable write TPS ?..

From: Dimitri <dimitrik(dot)fr(at)gmail(dot)com>
To: Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov>
Cc: PostgreSQL Performance <pgsql-performance(at)postgresql(dot)org>
Subject: Re: What is the most optimal config parameters to keep stable write TPS ?..
Date: 2009-05-11 17:31:33
Message-ID: 5482c80a0905111031m171ccd49v2343ea17161854d0@mail.gmail.com
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OK, it'll be better to avoid a such improvement :-)
Performance - yes, but not for any price :-)

Thank you!

Rgds,
-Dimitri

On 5/11/09, Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov> wrote:
> Dimitri <dimitrik(dot)fr(at)gmail(dot)com> wrote:
>
>> What about "full_page_writes" ? seems it's "on" by default. Does it
>> makes sense to put if off?..
>
> It would probably help with performance, but the description is a
> little disconcerting in terms of crash recovery. We tried running
> with it off for a while (a year or so back), but had problems with
> corruption. I think the specific cause of that has since been fixed,
> it's left us a bit leery of the option.
>
> Maybe someone else can speak to how safe (or not) the current
> implementation of that option is.
>
> -Kevin
>

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