Re: Used Memory - Mailing list pgsql-performance

From Jens-Wolfhard Schicke
Subject Re: Used Memory
Date
Msg-id 28EE02F5BBCA481B51C4E44E@[192.168.1.72]
Whole thread Raw
In response to Used Memory  ("Christian Paul B. Cosinas" <cpc@cybees.com>)
Responses Re: Used Memory  ("Christian Paul B. Cosinas" <cpc@cybees.com>)
Re: Used Memory  ("Christian Paul B. Cosinas" <cpc@cybees.com>)
List pgsql-performance
--On Freitag, Oktober 21, 2005 03:40:47 +0000 "Christian Paul B. Cosinas"
<cpc@cybees.com> wrote:
> I am having a confusion to the memory handling of postgreSQL.
> I rebooted my Server which is a PostgreSQL 8.0 Running on Redhat 9, which
> is a Dual Xeon Server and 6 gig of memory.
>
> Of course there is not much memory still used since it is just restarted.
>
> But after a number of access to the tables the memory is being used and
> it is not being free up. Actually after this access to the database and
> the server is just idle
>
> The memory is still used up. I am monitoring this using the "free"
> command which gives me about 5.5 gig of used memory and the rest free.
I suppose you looked at the top row of the free output?

Because there the disk-cache is counted as "used"... Have a look at the
second row where buffers are counted as free, which they more or less are.

> Is there something that I should do to minimize and free up the used
> memory?
No, the buffers make your database faster because they reduce direct disk
access

> I choose Polesoft Lockspam to fight spam, and you?
> http://www.polesoft.com/refer.html
I don't :)

Mit freundlichem Gruß,
Jens Schicke
--
Jens Schicke              j.schicke@asco.de
asco GmbH              http://www.asco.de
Mittelweg 7              Tel 0531/3906-127
38106 Braunschweig          Fax 0531/3906-400

pgsql-performance by date:

Previous
From: "Christian Paul B. Cosinas"
Date:
Subject: Used Memory
Next
From: Kuba Ouhrabka
Date:
Subject: Re: cached plans in plpgsql