• Subject: Re: SYSTEM TUNING
  • From: pytel@xxxxxxxxxx
  • Date: Thu, 28 Oct 1999 10:19:46 -0500


> What would cause
> commands that work with jobs to perform _very_ slowly?  WRKACTJOB isn't
bad,
> nor is WRKUSRJOB, but WRKSBMJOB and WRKSBSJOB can take five minutes to
come
> up.  What's up with that?

Most common reason for these commands to work slowly:
- job tables are heavily fragmented and take up too many disk extents
- job tables are located on a disk drive(a) with high contention

Both of these can be remedied by forcing system to reallocate and compress
job tables.
Set system values QTOTJOB and QADLTOTJOB appropriately, use CHGIPLA to set
system to compress job tables and reIPL
(this applies to V4Rx.)

Before doing this, it will be wise to get rid of old jobs, which have
unneeded spool files lingering in output queues.

Best regards
    Alexei Pytel


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