On Mon, 17 Oct 2005 14:44:41 -0500, Dave Danner <[EMAIL PROTECTED]> wrote:
>On Mon, 17 Oct 2005 13:41:00 -0400, Knutson, Sam <[EMAIL PROTECTED]>
wrote:
-snip-
>>This provided over an 80% reduction from the previous levels of CONSOLE
>>CPU use during our peak WLC charging hours!
-snip-
>Mr. Fagen can
>correct me if I'm wrong, but I thought .FORNSSI was pretty much just a
band-
>aid solution until the more robust redesign in OA09229 was available.  If
>you still see an appreciable difference between turning .FORNSSI on and
off
>after OA09229 I'd certainly like to know about that.

It's true that OA09229 will fix the lion's share of the additional overhead
caused by sending messages around the sysplex (it eliminates the automatic
multicast of all messages), but if you do use the ability to route messages
around the sysplex, OA08482+.FORNSSI *NONE will reduce CPU in the CONSOLE
address space by preventing these messages from going to subsystems that
will not have any interest in processing them.

I hesitate to make this a 'best practice' since I am not aware of any study
to determine if it always safe to turn this switch on.  I'm sure there are
subsystems that want to see foreign messages (i.e. focal point automation).

Scott Fagen
z/OS Core Technology Design
IBM Poughkeepsie

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