Re: slow response time for first, and only first time program is run.

Booth,

First, the list is apparently being cached so that subsequent executions
don't have as much to consider. Sort of like doing a scan on a source PF in
PDM; the first time is relatively slow, but the 2-n scans scream.

Second, is that for a relatively recent period (1-3 days)? I'm with Rob
and others on this. Since V5R4 I've always used the EXPDATE/DAYS options on
printer files; usually no more than 3 days (to cover weekends). And then
set up a job in the scheduler to run the DLTEXPSPLF command shortly before
midnight every day.

Jerry C. Adams
IBM System i Programmer/Analyst
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B&W Wholesale
office: 615-995-7024
email: jerry@xxxxxxxxxxxxxxx


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:
midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Booth Martin
Sent: Friday, August 14, 2009 2:23 PM
To: Midrange Systems Technical Discussion
Subject: Re: slow response time for first, and only first time program is
run.

Narrowed down further. Here is the command:

WRKOUTQ OUTQ(QUSRSYS/PRT01) OUTPUT(*PRINT)

10,000 spoolfiles are in this queue.

Run from the command line = 2+ minutes.
Run again immediately, = 3 seconds
Run again 5 minutes later = 3 seconds


Nathan Andelin wrote:

From: Vern Hamberg
The first time, none of the resources needed by the program
are in memory.

Well, that's a generalization, but it seems to me that Booth needs to

narrow it down even further. I have trouble seeing a 4-minute
initialization subsequently dropping to 6 seconds, except in a case where a
job is having trouble allocating a particular resource the first time.

-Nathan.





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Booth Martin
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