Date:         Tue, 14 Sep 2004 10:21:21 +0100
Reply-To:     "Greenwood, Nigel EDS-DWP" <nigel.greenwood1@EDS.DWP.GSI.GOV.UK>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         "Greenwood, Nigel EDS-DWP" <nigel.greenwood1@EDS.DWP.GSI.GOV.UK>
Subject:      PROC DATASETS AGE CPU Costs under SASV8.2
Content-Type: text/plain; charset="iso-8859-1"

Hi,
**** Cross posted to the MXG-L List *****
        I have a trend data library where each file group has 366
'generations'. There are enough groups for the total number of files on the
library to be 4,300 plus.

        When I ran the PROC DATASETS AGE process under version V6.09 the
process took about 2.74 minutes CPU (MVS OS/390). After having copied the
library using PROC COPY to a V8 library (under V8.2) and running the aging
again the CPU climbs to 12 Minutes!!! When I use a utility copy and run the
aging against the V6.09 copy under SAS V8.2 the CPU is 11.15 Minutes.

        Clearly the SAS V8 AGE process is the problem UNLESS there are some
SAS Options or MXG Options that influence this type of process. (Actually
the MXG options are not required in this process since no MXG code executed)

        I remember some correspondence about SAS V8 resulting in increased
CPU for some process types but has anyone experienced this particular
problem.

        TIA,
        Nigel



Nigel Greenwood
Systems Resource Management
UK Mainframe Hosting Services
Information Technology Outsourcing

External: 01253 335126
Internal: X65126




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