'Fastest' PC's are slowest in the house

From: "Justin Davis" <justin(dot)davis(at)rapidsys(dot)net>
To: <pgsql-performance(at)postgresql(dot)org>
Subject: 'Fastest' PC's are slowest in the house
Date: 2005-05-31 17:02:12
Message-ID: 200505311701.j4VH1oFl055853@zod.pns.networktel.net
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I have five PC's accessing a PG database that is mounted on a Dell Windows
2003 server. The PC's are accessing the database with a Fujitsu cobol
program via ODBC (all machines have same (newest) ODBC driver from PG). 2
of the machines are the newest I have and both pretty identically configured
but are very slow by comparison to the others. My colleagues and I are
still in the exploration / decision process, we have been working with and
learning the database about 2 months.

I'm looking to see if anyone knows of O/S or hardware issues right off the
bat or can recommend a debug method, log checking, etc. path we might
follow.

The program in question reads the PG database and displays matching query
results on a cobol screen, for the point of this topic that is all it is
doing. We run the same query from each PC which returns 15 records out of a
6,000 record customer DB.

The machines:

- 2 are 2.0 Ghz Dells with 512 Ram & XP SP2 - they take just over 2 minutes
- 1 AMD 2.4 with 256 Ram & XP SP2 - just under 2 secs.
- 1 AMD 900 Mhz with 256 Ram & XP SP 1 - just under 2 secs
- 1 Intel 266 Mhz with 256 Ram & Windows 2000 - 11-13 secs


Thanks,

Justin Davis
Rapid Systems, Inc.
800.356.8952

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