Measuring Qinter performance & page faulting

["Gerald Kern" <gkern@xxxxxxxxxxxxxxxxxxx>]

When I measure page faulting for Qinter, I use a 5 minute snapshot and the
use the method found in the Work Management Guide, chapter 14, section
titled "Using Faults Divided by Active -> Wait to Tune Interactive Pools".

The manual states "For interactive pools, you can calculate the approximate
number of page faults per transaction to determine if faulting is a problem
in that pool. Use the following formula to calculate the approximate number
of page faults per transaction:

   ((db faults + ndb faults) ÷ active --> wait) × 60

If the result of the calculation is greater than 20, and the number
increases as more users sign-on to the system, you may need to increase
storage.

The result of my measurement/calculation is usually between 4 and 5. Does
this indicate that the pool has more than enough storage allocated?

Are there any other methods that would be a better indicator of qinter
subsystem performance relative to page faulting? Is the work management
manual still a reliable guideline?

Thanks

Gerald Kern
IBM Certified AS/400 RPG IV Developer & RPG IV Programmer
MIS Project Leader, Lotus Notes/Domino Administrator
The Toledo Clinic, Inc.
4235 Secor Road
Toledo, OH 43623-4299
Phone 419-479-5535
gkern@xxxxxxxxxxxxxxxxxxx