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Re: count(*) performance

From: Markus Schaber <schabi(at)logix-tt(dot)com>
To: Gábriel Ákos <akos(dot)gabriel(at)i-logic(dot)hu>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: count(*) performance
Date: 2006-03-28 11:49:45
Message-ID: 442922D9.1020402@logix-tt.com (view raw or flat)
Thread:
Lists: pgsql-performance
Gábriel Ákos wrote:

> I thought that too. Autovacuum is running on our system but it didn't do
> the trick. Anyway the issue is solved, thank you all for helping. :)

Hi, Gabriel, it may be that your Free Space Map (FSM) setting is way to
low.

Try increasing it.

Btw, VACUUM outputs a Warning if FSM is not high enough, maybe you can
find useful hints in the log file.

HTH
Markus

-- 
Markus Schaber | Logical Tracking&Tracing International AG
Dipl. Inf.     | Software Development GIS

Fight against software patents in EU! www.ffii.org www.nosoftwarepatents.org


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