Message-ID: <44CB8DC1.4040105@tweakers.net>
Date: Sat, 29 Jul 2006 18:33:05 +0200
From: Arjen van der Meijden <acmmailing@tweakers.net>
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To: "Joshua D. Drake" <jd@commandprompt.com>
CC: Jochem van Dieten <jochemd@oli.tudelft.nl>,
	pgsql-performance@postgresql.org
Subject: Re: PostgreSQL scalability on Sun UltraSparc T1
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	<44CB8235.9070903@commandprompt.com>
In-Reply-To: <44CB8235.9070903@commandprompt.com>
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On 29-7-2006 17:43, Joshua D. Drake wrote:
> 
> I would love to get my hands on that postgresql version and see how much 
> farther it could be optimized.

You probably mean the entire installation? As said in my reply to 
Jochem, I've spent a few days testing all queries to improve their 
performance. I'm not sure what kind of improvements that yielded, but if 
I remember correctly its in the order of 3-5 times for the entire 
benchmark, compared to the initial MySQL-layout and queries.

If you mean the configuration and which version it was, I can look that 
up for you if you'd like. Including the compilation switches used on the 
T2000.

If we get to keep the machine (which we're going to try, but that's with 
worse performance than with their x4200 a bit doubtful), I'm sure we can 
work something out.
Then again, we regularly have other server hardware on which the same 
database is used, so even without the T2000 we could still do some 
effort to further improve postgresql's performance.
It might be interesting to have some Postgres experts do some more 
tuning and allowing MySQL AB to do the same... But I'm not sure if we're 
willing to spent that much extra time on a benchmark (just testing one 
database costs us about a day and a half...)

Best regards,

Arjen