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List:       pgsql-performance
Subject:    Re: [PERFORM] Barcelona vs Tigerton
From:       Guy Rouillier <guyr-ml1 () burntmail ! com>
Date:       2007-09-11 19:52:40
Message-ID: 46E6F208.8030308 () burntmail ! com
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Mindaugas wrote:
> Hello,
> 
> Now that both 4x4 out it's time for us to decide which one should be better for our \
> PostgreSQL and Oracle. And especially for Oracle we really need such server to \
> squeeze everything from Oracle licenses. Both of the databases handle OLTP type of \
> the load. Since we plan to buy 4U HP DL580 or 585 and only very few of them so \
> power ratings are not very critical in this our case. 
> First benchmarks (http://www.anandtech.com/IT/showdoc.aspx?i=3091) show that Intel \
> still has more raw CPU power but Barcelona scales much better and also has better \
> memory bandwidth which I believe is quite critical with 16 cores and DB usage \
> pattern. On the other hand Intel's X7350 (2.93GHz) has almost 50% advantage in CPU \
> frequency against 2GHz Barcelona.

Barcelona was just announced yesterday.  I wouldn't want to be betting 
my business on it just yet. Plus, AMD usually is able to up the clock on 
their chips pretty well after they've got a few production runs under 
their belts.  If you've absolutely got to have something today, I'd say 
Intel would be a safer bet.  If you can afford to wait 3-4 months, then 
you'll benefit from some industry experience as well as production 
maturity with Barcelona, and can judge then which better fits your needs.

-- 
Guy Rouillier

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