Sample data table statistics

These sample extracts from the file statistics for a hypothetical configuration are used to discuss how to interpret the information about data tables which is provided by the CICS statistics.

Figure 1, Figure 2, and Figure 3 show extracts from the file statistics for a hypothetical configuration similar to that discussed in Using statistics to select data tables, following conversion of the files into data tables.
Figure 1. CICFOR requested file statistics
Requested Statistics Report        Collection Date-Time 12/25/99-23:55:41  Last Reset 21:00:00  Applid CICFOR    Jobname SDTGSTF1
_________________________________________________________________________________________________________________________________
FILES - Resource Information
____________________________
  File      Data Set Name                               Data Set  RLS      DT      Time     Time     Remote    Remote   Lsrpool
  Name          Base Data Set Name (If Applicable)       Type    File  Indicator Opened   Closed     Name     Sysid      ID
  ____________________________________________________________________________________________________________________________
  APPLE     CIC01.CICOWN.APPLES                          K      NO         T    22:12:04  OPEN                           1
  BANANA    CIC01.CICOWN.BANANAS                         K      NO         T    22:53:56  OPEN                           1
  ORANGE    CIC01.CICOWN.CITRUS                          K      NO         T    20:51:25  OPEN                           2
  PLUM      CIC01.CICOWN.PLUMS                           K      NO         T    21:30:10  OPEN                           4
  POTATO    CIC01.CICOWN.POTATOES                        K      NO         T    20:30:10  OPEN                           8
  VICTORIA  CIC01.CICOWN.PLUMS                           K      NO         S    21:56:23  OPEN                           4
  ____________________________________________________________________________________________________________________________
Requested Statistics Report        Collection Date-Time 12/25/99-23:55:41  Last Reset 21:00:00  Applid CICFOR    Jobname SDTGSTF1
_________________________________________________________________________________________________________________________________
FILES - Requests Information
____________________________
  File     Get      Get Upd  Browse   Update   Add      Delete   Brws Upd VSAM EXCP Requests RLS req
  Name     Requests Requests Requests Requests Requests Requests Requests   Data    Index    Timeouts
  ____________________________________________________________________________________________________
  APPLE           1      495   760001      495       12        0        0     14560     1321        0
  BANANA          0     1803    48603     1803      951        0        0      8212      481        0
  ORANGE       1087   102677      104   107897     4709     1880        0     25180     1947        0
  PLUM            0       10     2001        0       20       10        0       580        3        0
  POTATO          0        0    24173        0        0        0        0      4513        2        0
  VICTORIA        0        3        0        0        5        3        0         5        1        0
  ____________________________________________________________________________________________________
  *TOTALS*     1088   104988   834882   110195     5697     1893
Requested Statistics Report        Collection Date-Time 12/25/99-23:55:41  Last Reset 21:00:00  Applid CICFOR    Jobname SDTGSTF1
_________________________________________________________________________________________________________________________________
FILES - Data Table Requests Information
_______________________________________
  File     Close    Read       Recs ¬   Adds from Add      Adds rejected Adds rejected Rewrite  Delete   Highest    Storage
  Name     Type     Requests   in Table   Reads   Requests    - Exit     - Table Full  Requests Requests Table Size Alloc(K)
  ___________________________________________________________________________________________________________________________
  APPLE              1105241          1   760000        12          0             0         495        0   760012      95104
  BANANA              652195          0    48602       951          2             0        1803        0    49551      11200
  ORANGE                1473       1191        0      4709          0             0      107897     1880   604167     266658
  PLUM                   227          1     2000        20          0             0           0       10     2025        256
  POTATO                9670      24173    24165         0          0         24165           0        0     1000       1760
  VICTORIA              3063          1        0         5          0             0           0        3     2025        256
  ___________________________________________________________________________________________________________________________
  *TOTALS*           1771869      25367   834767      5697          2         24165      110195     1893   760012
Figure 2. CICAOR1 requested file statistics
Requested Statistics Report        Collection Date-Time 12/25/99-23:56:58  Last Reset 21:00:00  Applid CICAOR1   Jobname SDTGSTA1
_________________________________________________________________________________________________________________________________
FILES - Resource Information
____________________________
  File      Data Set Name                               Data Set  RLS      DT      Time     Time     Remote    Remote   Lsrpool
  Name          Base Data Set Name (If Applicable)       Type    File  Indicator Opened   Closed     Name     Sysid      ID
  ____________________________________________________________________________________________________________________________
  APPLE     REMOTE                                                NO       R     CLOSED   CLOSED   APPLE     CIF1        N
  BANANA    REMOTE                                                NO       R     CLOSED   CLOSED   BANANA    CIF1        N
  ORANGE    REMOTE                                                NO       R     CLOSED   CLOSED   ORANGE    CIF1        N
  POTATO    REMOTE                                                NO       R     CLOSED   CLOSED   POTATO    CIF1        N
  ZUCCHINI  REMOTE                                                NO       R     CLOSED   CLOSED   COURGETT  CIA2        N
  ____________________________________________________________________________________________________________________
Requested Statistics Report        Collection Date-Time 12/25/99-23:56:58  Last Reset 21:00:00  Applid CICAOR1   Jobname SDTGSTA1
_________________________________________________________________________________________________________________________________
FILES - Requests Information
____________________________
  File     Get      Get Upd  Browse   Update   Add      Delete   Brws Upd VSAM EXCP Requests RLS req
  Name     Requests Requests Requests Requests Requests Requests Requests   Data    Index    Timeouts
  ____________________________________________________________________________________________________
  APPLE           1      520        0      520        5        0        0         0        0        0
  BANANA          0        0        0        0        0        0        0         0        0        0
  ORANGE        214    38735       14    37105     1311      630        0         0        0        0
  POTATO          0        0    24173        0        0        0        0         0        0        0
  ZUCCHINI        0        0        0        0        0        0        0         0        0        0
  ____________________________________________________________________________________________________
  *TOTALS*      215    39255    24187    38625     1316      630        0                           0
Requested Statistics Report        Collection Date-Time 12/25/99-23:56:58  Last Reset 21:00:00  Applid CICAOR1   Jobname SDTGSTA1
_________________________________________________________________________________________________________________________________
FILES - Data Table Requests Information
_______________________________________
  File     Close    Read       Recs ¬   Adds from Add      Adds rejected Adds rejected Rewrite  Delete   Highest    Storage
  Name     Type     Requests   in Table   Reads   Requests    - Exit     - Table Full  Requests Requests Table Size Alloc(K)
  ___________________________________________________________________________________________________________________________
  APPLE              1304214          0        0         0          0             0           0        0        0
  BANANA              441349          0        0         0          0             0           0        0        0
  ORANGE               63384        228        0         0          0             0           0        0        0
  POTATO                4835      24173        0         0          0             0           0        0        0
  ZUCCHINI             97867          0        0         0          0             0           0        0        0
  ___________________________________________________________________________________________________________________________
  *TOTALS*           1911649      24401        0         0          0             0           0        0        0
Figure 3. CICAOR2 requested file statistics
Requested Statistics Report        Collection Date-Time 12/25/99-23:59:59  Last Reset 21:00:00  Applid CICAOR2   Jobname SDTGSTA2
_________________________________________________________________________________________________________________________________
FILES - Resource Information
____________________________
  File      Data Set Name                               Data Set  RLS      DT      Time     Time     Remote    Remote   Lsrpool
  Name          Base Data Set Name (If Applicable)       Type    File  Indicator Opened   Closed     Name     Sysid      ID
  ____________________________________________________________________________________________________________________________
  COURGETT  CIC02.CICOWN.COURGETT                        K        NO       T    22:35:02  OPEN                           1
  LEMON     REMOTE                                                NO       R     CLOSED   CLOSED   ORANGE    CIF1        N
  ____________________________________________________________________________________________________________________
Requested Statistics Report        Collection Date-Time 12/25/99-23:59:59  Last Reset 21:00:00  Applid CICAOR2   Jobname SDTGSTA2
_________________________________________________________________________________________________________________________________
FILES - Requests Information
____________________________
  File     Get      Get Upd  Browse   Update   Add      Delete   Brws Upd VSAM EXCP Requests RLS req
  Name     Requests Requests Requests Requests Requests Requests Requests   Data    Index    Timeouts
  ____________________________________________________________________________________________________
  COURGETT        0        0        0        0        0        0        0         0        0        0
  LEMON         946    63942      299    70792     3398     1250        0         0        0        0
  ____________________________________________________________________________________________________
  *TOTALS*      946    63942      299    70792     3398     1250        0                           0
Requested Statistics Report        Collection Date-Time 12/25/99-23:59:59  Last Reset 21:00:00  Applid CICAOR2   Jobname SDTGSTA2
_________________________________________________________________________________________________________________________________
FILES - Data Table Requests Information
_______________________________________
  File     Close    Read       Recs ¬   Adds from Add      Adds rejected Adds rejected Rewrite  Delete   Highest    Storage
  Name     Type     Requests   in Table   Reads   Requests    - Exit     - Table Full  Requests Requests Table Size Alloc(K)
  ___________________________________________________________________________________________________________________________
  COURGETT             27656          0        0    386590          0             0       27656        0   101232      16160
  LEMON              3240872       1245        0         0          0             0           0        0        0
  ___________________________________________________________________________________________________________________________
  *TOTALS*           3268528       1245        0    386590          0             0       27656        0   101232
The main changes that are seen in the statistics when a file is redefined as a data table are:
  • Values appear in the owning region showing the activity of loading the data table.
  • Except during loading, the counts of Get Requests and Browse Requests in the “FILES - Requests Information” statistics for the owning region are much reduced (often to zero), because such requests can now be satisfied from the data table using cross memory services, so they appear in only the requesting regions.
  • After the initial load, data table statistics for update requests appear in both the owning and requesting regions showing the use of the data table.
  • The Recs ¬ in Table figure indicates the degree to which benefit from shared data tables support has been prevented. In an AOR it shows how many retrieval requests have had to be function shipped. In an FOR it shows how many records have had to be fetched from the source data set.

You should use the statistics to get an overall feel for the behavior of your data tables, rather than attempt to explain the individual values.