Re: postgresql.conf recommendations

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От ac@hsk.hk
Тема Re: postgresql.conf recommendations
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Msg-id 13A05E96-01A0-4B0A-8EA3-2A3B7FDF6838@hsk.hk
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Ответ на Re: postgresql.conf recommendations  (Josh Krupka <jkrupka@gmail.com>)
Ответы Re: postgresql.conf recommendations  (Kevin Grittner <kgrittn@ymail.com>)
Список pgsql-performance

On 6 Feb 2013, at 12:23 PM, Josh Krupka wrote:

On Tue, Feb 5, 2013 at 6:46 PM, Johnny Tan <johnnydtan@gmail.com> wrote:
shared_buffers = 48GB # min 128kB




Hi,

From the postgresql.conf, I can see that the shared_buffers is set to 48GB which is not small,  it would be possible that the large buffer cache could be "dirty", when a checkpoint starts, it would cause a checkpoint I/O spike.

I would like to suggest you about using pgtune to get recommended conf for postgresql.

Regards

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