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* running benchmark test on a 50GB database
@ 2006-09-20 15:28 Nuno Alves <nuno.alexandre.alves@gmail.com>
0 siblings, 2 replies; 4+ messages in thread
From: Nuno Alves @ 2006-09-20 15:28 UTC (permalink / raw)
To: pgsql-performance
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
^ permalink raw reply [nested|flat] 4+ messages in thread
* Re: running benchmark test on a 50GB database
@ 2006-09-20 15:43 Dave Dutcher <dave@tridecap.com>
parent: Nuno Alves <nuno.alexandre.alves@gmail.com>
1 sibling, 0 replies; 4+ messages in thread
From: Dave Dutcher @ 2006-09-20 15:43 UTC (permalink / raw)
To: 'Nuno Alves' <nuno.alexandre.alves@gmail.com>; pgsql-performance
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: pgsql-performance-owner@postgresql.org
> [mailto:pgsql-performance-owner@postgresql.org] 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
>
> ---------------------------(end of
> broadcast)---------------------------
> TIP 9: In versions below 8.0, the planner will ignore your desire to
> choose an index scan if your joining column's datatypes do not
> match
>
^ permalink raw reply [nested|flat] 4+ messages in thread
* Re: running benchmark test on a 50GB database
@ 2006-09-20 15:47 Chris Mair <chrisnospam@1006.org>
parent: Nuno Alves <nuno.alexandre.alves@gmail.com>
1 sibling, 1 reply; 4+ messages in thread
From: Chris Mair @ 2006-09-20 15:47 UTC (permalink / raw)
To: Nuno Alves <nuno.alexandre.alves@gmail.com>; +Cc: pgsql-performance
> 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.
^ permalink raw reply [nested|flat] 4+ messages in thread
* Re: running benchmark test on a 50GB database
@ 2006-09-20 22:05 Jim C. Nasby <jim@nasby.net>
parent: Chris Mair <chrisnospam@1006.org>
0 siblings, 0 replies; 4+ messages in thread
From: Jim C. Nasby @ 2006-09-20 22:05 UTC (permalink / raw)
To: Chris Mair <chrisnospam@1006.org>; +Cc: Nuno Alves <nuno.alexandre.alves@gmail.com>; pgsql-performance
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 jim@nasby.net
EnterpriseDB http://enterprisedb.com 512.569.9461 (cell)
^ permalink raw reply [nested|flat] 4+ messages in thread
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-- links below jump to the message on this page --
2006-09-20 15:28 running benchmark test on a 50GB database Nuno Alves <nuno.alexandre.alves@gmail.com>
2006-09-20 15:43 ` Dave Dutcher <dave@tridecap.com>
2006-09-20 15:47 ` Chris Mair <chrisnospam@1006.org>
2006-09-20 22:05 ` Jim C. Nasby <jim@nasby.net>
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