Re: High faulting in the System Memory Pool

[pnelson@xxxxxxxxxx]

   Are you at V5R2 with all the latest PTF's, including the database PTF's?   
I've got a client who has had some big problems since he put those latest
   = database PTF's on. IBM has been working on the problem for a few weeks,
   now= . They finally found the problem yesterday with QQQTSORT. He's
   supposed to = be getting a fix ASAP.

   Paul Nelson
   Arbor Solutions, Inc.
   7= 08-670-6978 Cell
   pnelson@xxxxxxxxxx


   &q= uot;Graap, Ken" <keg@xxxxxxxxxxxxx>
   Sent by: midrange-l-bounces@xxxxxxxxxxxx
   08/06/20= 03 09:11 AM MST
   Please respond to Midrange Systems= Technical Discussion

   To: "'Midrange'" <midrange-l@xxxxxxxxxxxx>
   <FON= T SIZE=2>cc:
   bcc:
   S= ubject: High faulting in the System Memory Pool</FONT= >

   I'm having an event o= ccur on my system this morning that I'm still
   trying to
   understand.
   <= /FONT>
   The faulting rate in the system = *MACHINE memory pool skyrocketed.
   I've seen this happen before when a communications recovery is in pro   
gress,
   but I checked that out and our comm interfaces seemed to be perfo= rming
   just
   fine.
   I did no= tice that a couple batch jobs were doing big query sorts
   (QQQTSORT)
   .. a= nd when they ended the faulting rate tapered off for a few minutes.
   But
   = it is still at about 9.8/second with an allocation of 11GB... That is
   high.   We usually can run at 2 faults/second with about 2GB allocated.
   </FO= NT>
   Does anyone have any ideas on what = I might look at to determine what is
   going on here?
   <FONT = FACE="Monospace,Courier">     Pool   Reserved   &nbsp= ;Max
    ----DB-----  --Non-DB---  Act-
      Size M=   Size M     Act  Fault Pages  Fault Pages  = Wait
    12368.42    672.18  +++++     .3 &n= bsp;  .3    9.4  10.9  281.0
     2765.47 &n= bsp;    1.65    180   17.7 129.1   54.8 306.4=   3855
      655.35     12.01     15 &= nbsp; 86.9  7946   49.3 928.2    4.6
      4= 23.93       .00     25   92.5 729.7  159= .3 492.0  586.7
        6.96       .00 =      6     .0    .6    7.6 &nb= sp;26.3   15.1
       81.91       .00  =    4    1.6 106.5   13.5  27.6    = 9.8
       81.91       .00      8 =   10.5  96.5   26.6  94.6   67.3
   <FO= NT FACE="Monospace,Courier">thanx
   Kenneth
   --
   ********************************
   Kenneth  = E.  Graap
   IBM Certified Specialist
   AS/400 Professional
   System= Administrator
   NW Natural - Information Services
   System Services
   P= hone 503 226 4211 X5537
   FAX   603 849 0591
   keg@xxxxxxxxxxxxx
   = ********************************
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