• Subject: Re: the hunt for cfint
  • From: "Alexei Pytel" <pytel@xxxxxxxxxx>
  • Date: Tue, 1 May 2001 16:57:45 -0500


I am not sure I understand what you mean ...
There are hardware interrupts to handle - I/O, addressing exceptions, time
etc.

    Alexei Pytel



                                                                                
                   
                    Don                                                         
                   
                    <dr2@cssas400.com>        To:     MIDRANGE-L@midrange.com   
                   
                    Sent by:                  cc:                               
                   
                    owner-midrange-l@mi       Subject:     Re: the hunt for 
cfint                  
                    drange.com                                                  
                   
                                                                                
                   
                                                                                
                   
                    05/01/2001 03:08 PM                                         
                   
                    Please respond to                                           
                   
                    MIDRANGE-L                                                  
                   
                                                                                
                   
                                                                                
                   





Alexei,

I thought that the 400 was queue driven vs interupt driven....

Don



On Tue, 1 May 2001, Alexei Pytel wrote:

>
> INT in CFINTn stands for INTerrupt, not for INTeractive as you might
think.
> CFINTn tasks are used for many purposes - like I/O interrupt processing -
> which cannot be easily attributed to any particular job or task.
> On a busy system with lots of jobs, CFINT will be in 2-4% range. So what
> you see is a quite healthy indicator.
>
>     Alexei Pytel
>
>
>
>

>                     "Steve Richter"

>                     <srichter@AutoCoder       To:
<MIDRANGE-L@midrange.com>
>                     .com>                     cc:

>                     Sent by:                  Subject:     the hunt for
cfint
>                     owner-midrange-l@mi

>                     drange.com

>

>

>                     05/01/2001 01:32 PM

>                     Please respond to

>                     MIDRANGE-L

>

>

>
>
>
> I work on a 720, processor type 206C.  The 206C, ( a cpu type that I dont
> find in my v4r5 system handbook)  is the feature that enables the 720 to
> run interactive jobs w/o penalty.
>
> But when I WrkSysAct, I see CFINT01 using 2, 3, 4 pct of the system.
>
> The workload on this system is traditional batch and 5250 interactive.
> Many remote users.  No web or domino serving.
>
> And when I try to simulate heavy interactive cpu usage by signing onto 6
or
> so terminals and running a pgm that continuously writes to the display,
cpu
> usage goes to 95 pct but CFINT stays in the 2 to 4 range.
>
> What is CFINT on a 720/206C running in response to?
>
> Steve
>
>
>
>
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