[PERFORM] running benchmark test on a 50GB database

2006-09-20 Thread Nuno Alves

Hi,

I am running bechmark test in a 50 GB postgresql database.
I have the postgresql.conf with all parameters by default.
In this configuration the database is very, very slow.

Could you please tell which is the best configuration?

My system:
Pentium D 3.0Ghz
RAM: 1GB
HD: 150GB SATA

Thanks in advance,
Nuno

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Re: [PERFORM] running benchmark test on a 50GB database

2006-09-20 Thread Dave Dutcher
I would start by reading this web page:

http://powerpostgresql.com/PerfList

There are probably some other web pages out there with similar information,
or you can check the mailing list archives for a lot of info.  If those
places don't help, then you should try to indentify what queries are slow,
post an EXPLAIN ANALYZE of the slow queries along with the relvent schema
info (i.e. table definitions and indexes).



 -Original Message-
 From: [EMAIL PROTECTED] 
 [mailto:[EMAIL PROTECTED] On Behalf Of 
 Nuno Alves
 Sent: Wednesday, September 20, 2006 10:28 AM
 To: pgsql-performance@postgresql.org
 Subject: [PERFORM] running benchmark test on a 50GB database
 
 
 Hi,
 
 I am running bechmark test in a 50 GB postgresql database.
 I have the postgresql.conf with all parameters by default.
 In this configuration the database is very, very slow.
 
 Could you please tell which is the best configuration?
 
 My system:
 Pentium D 3.0Ghz
 RAM: 1GB
 HD: 150GB SATA
 
 Thanks in advance,
 Nuno
 
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Re: [PERFORM] running benchmark test on a 50GB database

2006-09-20 Thread Chris Mair

 I am running bechmark test in a 50 GB postgresql database.
 I have the postgresql.conf with all parameters by default.
 In this configuration the database is very, very slow.
 
 Could you please tell which is the best configuration?
 
 My system:
 Pentium D 3.0Ghz
 RAM: 1GB
 HD: 150GB SATA

We don't know what your database looks like, what the
queries are you're running, what very, very
slow means for you and what version of PostgreSQL
on what OS this is :/

The two links are a good starting point to tuning your DB:
http://www.postgresql.org/docs/8.1/static/performance-tips.html
http://www.powerpostgresql.com/PerfList/


Bye, Chris.



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Re: [PERFORM] running benchmark test on a 50GB database

2006-09-20 Thread Jim C. Nasby
On Wed, Sep 20, 2006 at 05:47:41PM +0200, Chris Mair wrote:
 
  I am running bechmark test in a 50 GB postgresql database.
  I have the postgresql.conf with all parameters by default.
  In this configuration the database is very, very slow.
  
  Could you please tell which is the best configuration?
  
  My system:
  Pentium D 3.0Ghz
  RAM: 1GB
  HD: 150GB SATA
 
 We don't know what your database looks like, what the
 queries are you're running, what very, very
 slow means for you and what version of PostgreSQL
 on what OS this is :/
 
 The two links are a good starting point to tuning your DB:
 http://www.postgresql.org/docs/8.1/static/performance-tips.html
 http://www.powerpostgresql.com/PerfList/

Also, 1G is kinda light on memory for a 50G database.
-- 
Jim Nasby[EMAIL PROTECTED]
EnterpriseDB  http://enterprisedb.com  512.569.9461 (cell)

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