Re: Performance tuning memory pools -- MIDRANGE-L

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On Fri, Mar 26, 2010 at 15:02, Josh Diggs <JDiggs@xxxxxxxxxxxx> wrote:

We are seeing very slow response on jobs that run out of the *Base memory pool. ÂThese are java jobs that are part of our ERP package. ÂFrom looking at wrksyssts it appears that a good part of the problem may be excessive paging. ÂWhen the system is under full load we are seeing an average of a little less then 100 DB faults and about 150 Non-DB faults per second.

Well, the following would help:

How much memory is allocated to this partition?
How large is the active data set being used?
How large is the data set?
How many users are on this system?
How many disks do you have, of what type and to which kind of
controller are they attached to using which protection mode?

For starters, consider that a standard office laptop or workstation
ships with 2 or 4GB of RAM by default. And that's for a single user.
Of course you don't need that much per user on the IBM i, but i've
seen people trying to cram 50 users on a system with 4GB of RAM.

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