Performance consequences from downgrading from 64-bit to 32-bit?

From: Thomas Jeff <ThomasJe_at_tce.com>
Date: Fri, 15 Nov 2002 08:59:07 -0800
Message-ID: <F001.0050464C.20021115085907@fatcity.com>

We have an 8.1.7.4 64-bit 24x7 OLTP database currently hosted on an RS6000 s80 running
AIX 4.3.3 The database is scheduled to be migrated to a new box, RS6000 ip680, running
AIX 5.1. According to the compatibility matrix on Metalink, 64-bit 8.1.7.4 is not certified
on AIX 5.1, but the 32-bit version is.

So one option is to simply downgrade to 8.1.7.4 32-bit when we make the move.

Would we expect to see any performance degradation as a result of moving from 64-bit to
32-bit, notwithstanding the fact the degradation could be masked by virtue of moving to a
newer, faster box?

Thanks.

---

Jeffery D Thomas
DBA
Thomson Information Services
Thomson, Inc.

Email: jeff.thomas_at_thomson.net

Indy DBA Master Documentation available at: http://gkmqp.tce.com/tis_dba
Select 'Indy DBA' then 'DBA Web Pages'

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Author: Thomas Jeff
  INET: ThomasJe_at_tce.com

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