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From: Willo van der Merwe <willo@studentvillage.co.za>
To: Joshua D. Drake <jd@commandprompt.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: PostgreSQL performance issues
Date: Tue, 29 Aug 2006 17:06:02 +0200
Message-ID: <44F457DA.7060200@studentvillage.co.za> (raw)
In-Reply-To: <000701c6cb7c$0027a820$0a00a8c0@svo.co.za>
References: <44F446B2.2090900@studentvillage.co.za>
	<000701c6cb7c$0027a820$0a00a8c0@svo.co.za>

Joshua D. Drake wrote:
>
>> 4 1/2 seconds for a count(*) ? This seems a bit rough - is there 
>> anything else I can try to optimize my Database? You can imagine that 
>> slightly more complex queries goes out the roof.
>
> Well a couple of things.
>
> 1. You put all your money in the wrong place.. 1 hard drive!!??!!
Yes, I realize 1 hard drive could cause a bottle neck, but on average 
I'm sitting on a 1-2% wait for IO.
> 2. What is your maintenance regimen? Vacuum, Analyze????
I'm doing a daily VACUUM ANALYZE, but just to be on the safe side, I 
performed one manually before I ran my test, thinking that I might have 
to up the frequency.
>
> Joshua D. Drake
>
>>
>> Any help appreciated
>>
>> Regards
>>
>> Willo van der Merwe
>>
>
>




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