From: Greg Smith <gsmith@gregsmith.com>
To: brauagustin-susc@yahoo.com.ar
Cc: pgsql-performance@postgresql.org
Subject: Re: Low CPU Usage
Date: Sat, 22 Sep 2007 02:29:17 -0400 (EDT)
Message-ID: <Pine.GSO.4.64.0709220220490.12312@westnet.com> (raw)
In-Reply-To: <383851.67716.qm@web30009.mail.mud.yahoo.com>
References: <383851.67716.qm@web30009.mail.mud.yahoo.com>
On Thu, 20 Sep 2007, brauagustin-susc@yahoo.com.ar wrote:
> Which other test can I do to find if this is a hardware, kernel o
> postgres issue?
The little test hdparm does is not exactly a robust hard drive benchmark.
If you want to rule out hard drive transfer speed issues, take at look at
the tests suggested at
http://www.westnet.com/~gsmith/content/postgresql/pg-disktesting.htm and
see how your results compare to the single SATA disk example I give there.
--
* Greg Smith gsmith@gregsmith.com http://www.gregsmith.com Baltimore, MD
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To: pgsql-performance@postgresql.org
Cc: gsmith@gregsmith.com, brauagustin-susc@yahoo.com.ar
Subject: Re: Low CPU Usage
In-Reply-To: <Pine.GSO.4.64.0709220220490.12312@westnet.com>
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