David,
A third party queue management product may be the solution you are
looking for.  These allow for a much more refined way of addressing
priority problems.  HP has the Workload Manager, and we <<warning -
product promotion>> at Lund have Q-Xcelerator (there used to be on
called KLA-Express too).  One of these will probably prove helpful.

Jeff Kubler
Lund Performance Solutions

> Date:          Fri, 18 Jul 1997 05:01:36 -0400
> Reply-to:      David Randall <[log in to unmask]>
> From:          David Randall <[log in to unmask]>
> Subject:       System tuning - suggestions please
> To:            [log in to unmask]

> Dear readers,
>
> Clues sought to the black arts of 3000 performance tuning.
>
> The queues on our 957 running approx 50 sessions and a handful
> of batch processes is as follows.  In general we use CQ for
> true OLTP applications, DQ for batch jobs and EQ for online users
> with cpu hungry applications. (Mainly to protect our CQ users)
>
> We are increasing the number of hungry users all of the time and
> I have noticed that in some circumstances STORE type operations
> will grind to a complete halt with our current set up.
>
> I need a compromise solution that will enable my online users
> to get sensible response times from their online reports but
> at the same time protects my high volume, low CPU OLTP users and
> my background operations type tasks (stores and the like).
>
> I know that this is very limited information to go on but
> will be happy to post more details if you can suggest solutions
> which work for you!
>
>                     ------QUANTUM-------
> QUEUE  BASE  LIMIT  MIN    MAX    ACTUAL  BOOST  TIMESLICE
> -----  ----  -----  ---    ---    ------  -----  ---------
>  CQ    152    200   1      2000   18      DECAY    200
>  DQ    202    238   2000   2000   2000    DECAY    200
>  EQ    160    238   1      200    25      DECAY    200
>
> I have tried oscillating the DQ and EQ but it seemed to make
> things worse (fast performance for a period then nothing
> for several seconds)
>
> All suggestions welcomed.
>
> Thanks in advance
>
> David Randall, IT Manager, Healthcall Services Limited
> 401 South Row, Milton Keynes, Bucks.. MK9 2PH http:\\www.healthcall.co.uk
> Voice +1908 691919 Fax : +1908 690169 mailto:\\[log in to unmask]
>