Обсуждение: How to optimize Postgres Database

Hi All,
            I am running an application, which connects to the postgres
database at initialization time and perform the database operations like
Select/Update.
Database queries are very simple.
On analyzing my application through Quantifier( Performance analyzing
tool), I found the most of the time my application is waiting on recv,
waiting for Database response.
When i run Vacuum on perticular tables, i observed that performance
improoves drastically.

So please tell me how can i improve database performance through
configuration parameters. I had tried to change parameters in
postgresql.conf file but of no avail.
Now i am trying to Auto Vacuum, but don't know how to run Auto Vacuum.

Please help me to solve these problems.

Thanks in advance.
Hemant

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On Tue, Aug 30, 2005 at 09:45:52AM +0530, Hemant Pandey wrote:

>             I am running an application, which connects to the postgres
> database at initialization time and perform the database operations like
> Select/Update.
> Database queries are very simple.
> On analyzing my application through Quantifier( Performance analyzing
> tool), I found the most of the time my application is waiting on recv,
> waiting for Database response.
> When i run Vacuum on perticular tables, i observed that performance
> improoves drastically.

Looks like you aren't doing the appropiate regular maintenance tasks.
Please have a look at the manual,

http://www.postgresql.org/docs/8.0/static/maintenance.html

For further performance tuning, have a look at

http://www.powerpostgresql.com/PerfList

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Alvaro Herrera -- Valdivia, Chile         Architect, www.EnterpriseDB.com
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