From: Luke Lonergan <llonergan@greenplum.com>
To: stange@rentec.com
Cc: Dave Cramer <pg@fastcrypt.com>
Cc: Greg Stark <gsstark@mit.edu>
Cc: Joshua Marsh <icub3d@gmail.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Hardware/OS recommendations for large databases (
Date: Fri, 18 Nov 2005 08:17:48 -0800
Message-ID: <BFA33EAC.1404E%llonergan@greenplum.com> (raw)
In-Reply-To: <437DFDB8.1030208@rentec.com>
Alan,
On 11/18/05 8:13 AM, "Alan Stange" <stange@rentec.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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To: pgsql-performance@postgresql.org
Cc: llonergan@greenplum.com, stange@rentec.com, pg@fastcrypt.com, gsstark@mit.edu, icub3d@gmail.com
Subject: Re: Hardware/OS recommendations for large databases (
In-Reply-To: <BFA33EAC.1404E%llonergan@greenplum.com>
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