Subject: Re: scaling up postgres
From: Scott Marlowe <smarlowe@g2switchworks.com>
To: Zydoon <fzied@planet.tn>
Cc: pgsql-performance@postgresql.org
In-Reply-To: <448DE0DB.1020107@planet.tn>
References: <200606030931.k539V38Y007877@smtp2.planet.net.tn>
	<20060603094355.GA23297@uio.no>
	<1150062140.23423.0.camel@localhost.localdomain>
	<448D3B65.7090709@aeccom.com>  <448DE0DB.1020107@planet.tn>
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Date: Tue, 13 Jun 2006 14:28:49 -0500

On Mon, 2006-06-12 at 16:47, Zydoon wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Thank you for sharing this.
> Coming back to my problem :) A very faithful partner accepted to
> gracefully borrow us 3 Pseries (bi-ppc + 2G RAM not more). with linux on
> them.
> Now I'm trying to make my tests, and I'm not that sure I will make the
> switch to the PSeries, since my dual xeon with 4 G RAM can handle 3500
> concurrent postmasters consuming 3.7 G of the RAM. I cannot reach this
> number on the PSeries with 2 G.
> 
> can someone give me advice ?
> BTW, I promise, at the end of my tests, I'll publish my report.

Search the performance archives for the last 4 or 5 months for PPC /
pseries machines.

You'll find a very long thread about the disappointing performance the
tester got with a rather expensive P Series machine.  And his happy
ending of testing on an Opteron machine.