Re: Disadvantages on having too many page slots?

From: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>
To: Francisco Reyes <lists(at)stringsutils(dot)com>
Cc: PostgreSQL general <pgsql-general(at)postgresql(dot)org>
Subject: Re: Disadvantages on having too many page slots?
Date: 2007-04-18 16:32:31
Message-ID: 4626481F.1020602@commandprompt.com
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Francisco Reyes wrote:
> At one point the databases we had in a machine used 10 million plus page
> slots. We made the number of page slots 14 million.
>
> After a few large system were phased out we now only use about 2 million
> page slots. Other than hard disk space, are there any disadvantages on
> having a large number of page slots?

They use shared memory.

>
>
> DETAIL: A total of 2233472 page slots are in use (including overhead).
> 2233472 page slots are required to track all free space.
> Current limits are: 14000000 page slots, 1000 relations, using 82096 KB.
>
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