Re: WRKJOB commands

WRKxxJOB commands work by sequentially scanning WCBT (Work Control Block
Table - job control structures on AS/400). If it takes a lot of time, it
indicates that WCBT is heavily fragmented.
Two things can be done: compress WCBT or force WCBT recreation.
To compress WCBT:
 -   create data area:
          CRTDTAARA DTAARA(QSYS/QWCBTCMPTB) TYPE(*CHAR) LEN(1)

     The following command will then turn on the compression of the WCBT
during the IPL:

          CHGDTAARA DTAARA(QSYS/QWCBTCMPTB) VALUE('1')

     The following command will then turn off the compression of the WCBT
during the IPL:

          CHGDTAARA DTAARA(QSYS/QWCBTCMPTB) VALUE('0')

To force WCBT recreation, perform manual IPL from system console, and on
one of the menus you can request WCBT recreation.
 It will remove all jobs from system, including all spool files.
Two system values, which control WCBT allocation are QTOTJOB (initial
allocation) and QADLTOTJOB (increment).

Best regards
    Alexey Pytel



Terry Richardson <RichardsonT@ORVIS.com> on 03/23/99 01:41:38 PM

Please respond to MIDRANGE-L@midrange.com

To:   "'MIDRANGE-L@midrange.com'" <MIDRANGE-L@midrange.com>
cc:    (bcc: Alexei Pytel/Rochester/IBM)
Subject:  WRKJOB commands





Our shop has 3 AS/400's, a 170, a 530 and an older F45. The F45 is
running V3R2. When any job related command is issued (WRKUSRJOB, WRKJOB,
WRKSBMJOB, etc.) they take seemingly FOREVER to respond. Generally, the
response time is 35 to 45 seconds. This only started happening when V3R2
was loaded. The machine is strictly for development and never has more
than 2 or 3 users logged on. Is there any remedy for this situation? I
don't think it is a tuning issue, since all other commands respond well.
I seem to remember someone saying once that certain job information may
be stored in a compressed format and the 'decompression' may be
responsible for the slow response, but haven't been able to confirm
this. Any feedback on this would be MUCH appreciated.

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