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QAIX > PostgreSQL database development > Shared buffers, Sort memory, Effective Cache Size 27 April 2004 15:12:20
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Shared buffers, Sort memory, Effective Cache Size

FrГ©dГ©ric Robinet 27 April 2004 15:12:20
 Hello,

I have a bi-PIII server with 2Gb of RAM with Debian and a PostgreSQL 7.4
running on. What are the bests settings for shared buffers, sort memory and
effective cache size?

My main database have a small/mid range size: some tables may have 1 or 2
millions of records.

Thanks

FrГ©dГ©ric Robinet
Fr@Mims.be


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Qing Zhao 21 April 2004 20:01:30 [ permanent link ]
 Hello,

I have recently configured my PG7.3 on a G5 (8GB RAM) with
shmmax set to 512MB and shared_buffer=50000­, sort_mem=4096
and effective cache size = 10000. It seems working great so far but
I am wondering if I should make effctive cache size larger myself.

Tnaks!

Qing
On Apr 21, 2004, at 9:29 AM, FrГ©dГ©ric Robinet wrote:
Hello,>
I have a bi-PIII server with 2Gb of RAM with Debian and a PostgreSQL > 7.4> running on. What are the bests settings for shared buffers, sort > memory and> effective cache size?>
My main database have a small/mid range size: some tables may have 1 > or 2> millions of records.>
Thanks>
FrГ©dГ©ric Robinet> Fr@Mims.be>
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Manfred Koizar 27 April 2004 15:12:20 [ permanent link ]
 On Wed, 21 Apr 2004 10:01:30 -0700, Qing Zhao <qzhao@supplyfx.com­>
wrote:>I have recently configured my PG7.3 on a G5 (8GB RAM) with>shmmax set to 512MB and shared_buffer=50000­, sort_mem=4096>and effective cache size = 10000. It seems working great so far but>I am wondering if I should make effctive cache size larger myself.

Yes, much larger! And while you are at it make shared_buffers smaller.

Servus
Manfred

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QAIX > PostgreSQL database development > Shared buffers, Sort memory, Effective Cache Size 27 April 2004 15:12:20
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