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Re: intel vs amd benchmark for pg server

From: postgres(at)vrane(dot)com
To: "P(dot)J(dot) Josh Rovero" <rovero(at)sonalysts(dot)com>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: intel vs amd benchmark for pg server
Date: 2002-04-26 14:06:11
Message-ID: 20020426100611.A17299@amd.universe (view raw, whole thread or download thread mbox)
Lists: pgsql-general
1. 64MB machines beat 192MB and 240MB machies.

2. On 64 MB machine I tested on 5400rpm drive
	and still much faster than athlon machine.

3. On sis machine I am using a separete ati agp card
	not the built in one and as a result
	i am using all memory.

You would expect AMD machines to be at least
slightly faster because cpu speed ratio are
about 2 or bigger.   You might not expect
linear scaling but at least faster you know.

Also as I said kernel compilation time
scales almost linearly with cpu speed

On Fri, Apr 26, 2002 at 09:49:31AM -0400, P.J. Josh Rovero wrote:
> A fairer test would be to equip the machines with equivalent
> disk (rpms and number) and RAM (amount and speed) configurations.
> SiS motherboards, particularly with on-board video, tend
> to be lower performance than boards with separate AGP/PCI
> video.
> postgres(at)vrane(dot)com wrote:
> > Hi
> > 
> > I would like to upgrade my production pg server from a machine with
> > following specs
> > 	celeron 900MHz, intel 810 motherboard, 512MB
> > 	pc 133 sdram memory,
> > 	PGDATA is on 2 ide 7200rpm drives under software raid 1,
> > 	linux kernel 2.4.18
> .
> .
> .
> > My workstation specs is amd 1.33GHz, 192MB SDRAM, SIS motherboard,
> > $PGDATA is on a single 5400rpm drive.  
> -- 
> P. J. "Josh" Rovero                                 Sonalysts, Inc.
> Email: rovero(at)sonalysts(dot)com    215 Parkway North
> Work: (860)326-3671 or 442-4355                     Waterford CT 06385
> ***********************************************************************

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