Tom,
Your
current machine may be undersized for Interactive use. The following
change in V4R5 describes how Interactive use is now handled. If your
interactive feature is small and you run heavy interactive, then you would have
seen CFINT very active on you r 4.3 system. V4R5 changed that to the
message you are seeing on QSYSOPR. One thing you would see under V4R5 is
the priority of the interactive tasks moving from a 20, to a 36, to a 45, up to
a 89.
There
are two new System Values options that set by default: QDYNPTYADJ
and QDYNPTYSCD set to a 1. These control the limit on Interactive use
according to the feature card installed and throttle Interactive use by changing
the priority and displaying the message you are getting.. If these options
are set to 0 then CFINT will kick in and Interactive could use all of the
processor.
New in
V4R5. Download the manual from IBM's Publib Web Site --- "AS400
Performance Capabilities Reference". Chapter 2 explains the changes in the
Interactive environment.
Excerpt from the manual:
"In
V4R5 there are several new 2xx, 8xx and SBx model servers. These new
server models utilize an enhanced server algorithm that manages the interactive
CPU utilization. This enhanced server algorithm may provide significant
user benefit. On existing models, when interactive users exceed the
interactive CPW capacity of a system, additional CPU usage visible in one or
more CFINT tasks, reduces system capacity for all users including
client/server. New in V4R5, the system attempts to hold interactive CPU
utilization below the threshold where CFINT CPU usage begins to
increase."
Quite
a nice technical explanation in the manual.
Tom
Law
NACCO
Materials Handling Group
We recently
upgraded our 720 from v4r3 to v4r5. Now we're seeing lots of messages
telling us that we've our interactive threshold (never happened at v4r3 or
earlier). Anyone know of a PTF to address this issue?
midrange.com
