Date: Wed, 14 Feb 2007 09:25:01 -0800
From: Kenji Morishige <kenjim@juniper.net>
To: Claus Guttesen <kometen@gmail.com>
Cc: pgsql-performance@postgresql.org, kenjim@juniper.net
Subject: Re: quad or dual core Intel CPUs
Message-ID: <20070214172501.GA2405@juniper.net>
References: <20070213194610.GA10789@juniper.net>
	<b41c75520702140119l2dda132cta47e38ecae1f7a49@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <b41c75520702140119l2dda132cta47e38ecae1f7a49@mail.gmail.com>
User-Agent: Mutt/1.4.2.1i

Thanks Claus thats good news!  
I'm having a reputable vendor build the box and test it for me before
delivering.  The bottom line of your message, did you mean 'should be not a
problem'?  I wonder what the main reason for your improvement, your ram was
increased by a factor of 2, but 4 way opteron vs 4 way woodcrest performance
must not be that significant.

-Kenji


> We recently migrated from a four way opteron @ 2 GHz with 8 GB to a
> four way woodcrest @ 3 GHz (HP DL380 G5) with 16 GB ram. I also
> upgraded FreeBSD from 6.0 to 6.2 and did a minor upgrade of postgresql
> from 7.4.9 to 7.4.12. The change was tremendous, the first few hours
> of after it went into production I had to doublecheck that our website
> worked, since the load was way below 1 whereas the load had been
> almost 100 during peak.
> 
> I don't have any financial ties to HP but building a server from
> scratch may not be worth it, rather than spending time assemling all
> the different parts yourself I would suggest you get a server from one
> vendor who build a server according to your specs.
> 
> The DL380 (also) has a 256 MB bbc controller, the nic works flawlessly
> with FreeBSD 6.2, all parts are well integrated, the frontbay can
> accomodate 8 146 GB SAS drives. This server is wellsuited as a
> postgresql-server.
> 
> Approx. 200 reqest a sec. should be a problem unless the queries are heavy.
> 
> regards
> Claus