Re: Performance PG 8.0 on dual opteron / 4GB / 3ware

From: Joost Kraaijeveld <J(dot)Kraaijeveld(at)Askesis(dot)nl>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Pgsql-Performance <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Performance PG 8.0 on dual opteron / 4GB / 3ware
Date: 2005-11-06 19:33:53
Message-ID: 1131305633.5882.17.camel@Panoramix
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On Sun, 2005-11-06 at 12:17 -0500, Tom Lane wrote:
> Does that table have any triggers that would fire on the update?
Alas, no trigger, constrainst, foreign keys, indixes (have I forgotten
something?)

All queries are slow. E.g (after vacuum):

select objectid from prototype.orders

Explain analyse (with PgAdmin):

Seq Scan on orders (cost=0.00..58211.79 rows=1104379 width=40) (actual
time=441.971..3252.698 rows=1104379 loops=1)
Total runtime: 5049.467 ms

Actual execution time: 82163 MS (without getting the data)


Groeten,

Joost Kraaijeveld
Askesis B.V.
Molukkenstraat 14
6524NB Nijmegen
tel: 024-3888063 / 06-51855277
fax: 024-3608416
e-mail: J(dot)Kraaijeveld(at)Askesis(dot)nl
web: www.askesis.nl

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