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Re: intel vs amd benchmark for pg server

From: Brent Wood <baw(at)frc(dot)niwa(dot)cri(dot)nz>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: intel vs amd benchmark for pg server
Date: 2002-04-28 22:03:42
Message-ID: Pine.OSF.4.21.0204290954520.291176-100000@neptune.niwa.cri.nz (view raw or flat)
Thread:
Lists: pgsql-general
SiS chipsets are generally pretty basic, although some of their more
recent ones are going particularly well.

If you want to do a more genuine cpu comparison, you should use
motherboards with comparable chipsets, so both boards have same
generation SiS (or VIA or ALI) chipsets for Intel/AMD accordingly. Same
memory (type, speed, amount & configuration), same hard drive & same O/S & 
Postgres installation. 

There are so many issues with motherboards, chipsets, memory
access/latencies, off cpu caches, drive caches, etc... (before we start
looking at the IDE DMA & other drivers), etc that an evaluation
such as yours cannot be said to compare cpu's. It just compares those two
platforms, I don't think you can state from your observations that any one
component is responsible for the performance difference.


Brent Wood

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