Joseph Dolliver writes:

> We are running a new N-Class system and are on 7.5 pp1 with reactive patches
> for a new VA7110. While in glance we see the following frequently during the
> day and see spikes to 100% CPU usage. There are usually pins 4,5,6,7,8 all
> running this program and are in the "A" queue. Can you tell me what the
> system is doing
>
> Thanks in advance
>
>
> Process Family for Pin 7 is:
>
> Parent is Pin 1 executing program PROGEN.PUB.SYS
>
> Child Processes are:
>
> No Children for this Process

Progen does not do much of anything until you perform a shutdown at which point it
takes care of signaling processes to terminate and waiting for them to do that. The
rest of the time it is just the "parent" attachment point for system processes.

Pin's 4,5,6,7 & 8 are "port facility processes" or PFP's. These processes handle
routing of messages to and from ports that for one reason or another cannot send
a message or receive one. For example, a port's "server" cannot run on the ICS
(interrupt control stack) but something needs to send it a message from there. Certain
ports also have thresholds of the number of messages they can handle at one stretch
anything over that threshold (which varies port to port) will be routed to its assigned
PFP. None of this is abnormal or a sign of problems, it happens all the time.

While I don't know what might be causing the 100% spikes it is possible that seeing
PFP's running during them is a byproduct rather than the cause.

hth,

Bill
hp/vCSY
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