Using the Realtime Monitor › Specific Buffer I/O Detail

Specific Buffer I/O Detail

 PM-Rnn.n SYSTEM71         CA, Inc.                  V71      08.348 10:46:43.34
 CMD-->                                                             Window : 03
                                                                    Refresh: 10
   03 Specific Buffer I/O Detail                                              >
                                                              Fnd_In      Read
  File_Name                    Area_Name                      Buffer     Count
  DBCR.BRANCHA                 DBCR.BRNCHTEL                     257         2
  DBCR.BRANCHB                 DBCR.BRNCHTEL
  DBCR.BRANCHC                 DBCR.BRNCHTEL                     193         1
  DBCR.BRANCHD                 DBCR.BRNCHTEL                     492         2

PM-Rnn.n SYSTEM71         CA, Inc.                  V71      08.348 10:46:56.23
 CMD-->                                                             Window : 03
                                                                    Refresh: 10
   03 Specific Buffer I/O Detail                                           <  >
                                      Read     Fnd_In      Write   Prefetch
    File_Name                        Count      Cache      Count       Hits
    DBCR.BRANCHA                         2                     1
    DBCR.BRANCHB
    DBCR.BRANCHC                         1
    DBCR.BRANCHD                         2

PM-Rnn.n SYSTEM71         CA, Inc.                  V71      08.348 10:47:10.13
 CMD-->                                                             Window : 03
                                                                    Refresh: 10
   03 Specific Buffer I/O Detail                                           <
                                 Fnd_In    Write Prefetch
   File_Name                      Cache    Count     Hits Buffer_Name
   DBCR.BRANCHA                                1          DBCR_BRCH_BUFFER
   DBCR.BRANCHB
   DBCR.BRANCHC
   DBCR.BRANCHD

Screen Description

To request the Specific Buffer I/O Detail screen, enter a nonblank character next to a buffer name in the Buffer I/O Summary screen. The Specific Buffer I/O Detail screen displays a line of information for each file/area combination assigned to the buffer.

What To Look For

Request this screen when you notice a problem related to the associated buffer on the Buffer I/O Summary screen. For example, the Buffer I/O Summary screen may indicate that too many I/Os are being performed for requested pages. Use the Specific Buffer I/O Detail screen to determine which files have the highest activity in the selected buffer.