Re: Hardware/OS recommendations for large databases (

From: "Luke Lonergan" <llonergan(at)greenplum(dot)com>
To: stange(at)rentec(dot)com
Cc: "Dave Cramer" <pg(at)fastcrypt(dot)com>, "Greg Stark" <gsstark(at)mit(dot)edu>, "Joshua Marsh" <icub3d(at)gmail(dot)com>, pgsql-performance(at)postgresql(dot)org
Subject: Re: Hardware/OS recommendations for large databases (
Date: 2005-11-18 16:17:48
Message-ID: BFA33EAC.1404E%llonergan@greenplum.com
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Alan,

On 11/18/05 8:13 AM, "Alan Stange" <stange(at)rentec(dot)com> wrote:

> I told you in my initial post that I was observing numbers in excess of
> what you claiming, but you seemed to think I didn't know how to measure
> an IO rate.
>
Prove me wrong, post your data.

> I should note too that our system uses about 20% of a single cpu when
> performing a table scan at >100MB/s of IO. I think you claimed the
> system would be cpu bound at this low IO rate.

See above.

- Luke
>

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