Activity Log statistics are produced when you select the STATS or STATS ONLY option. All statistics include the following types of listing:
Ispec statistics
Station statistics
There are further types of Activity Log statistics that might be output, depending on your selected options, as shown in the following table.
| Type of Statistics Listed | Option Selected |
|---|---|
| Ispecs by Station | EXPANDED |
| COMSTP program | UPDATE |
| Average time per transaction | TIME |
Each listing type has a similar layout, showing two or three columns of database activity, as follows.
Input (always listed)
Error (always output)
DMS (included if you select the DBSTATS option)
Input Statistics
Input Statistics are listed under the column headed INPUT, as shown in the following table.
| Type of Listing | Value |
|---|---|
| Ispec | The number of times an Ispec is transmitted from all stations. |
| Station | The number of times a Page 1 screen is transmitted from a station. |
| Ispec by Station | The number of times an Ispec is transmitted from each station. |
| Subsystem | The number of times a COMSTP program receives input from all stations; that is, the number of times Ispecs in that subsystem are transmitted. |
Values apply to the period of the log, which might be limited by output selection parameters, such as time interval.
Page 2 requests and Administration (colon) commands are not recorded.
Error Statistics
Error statistics are output under the column headed ERROR, which records the number of inputs with one or more errors. This value is not a count of all errors.
The following are counted as errors:
Failed automatic edit or look up
Execution of any form of the Message logic command (unless Glb.Error is cleared)
Moving five asterisks (*****) to Glb.Error
The following are not counted as errors:
Executing a Recall logic command
Executing a SendMessage logic command
DMS Read/Write Statistics
DMS statistics are output under the heading DMS when the DBSTATS option is selected. Each value shows the average number of logical database reads and writes performed by each transaction in the particular listing category.
The following operations perform logical reads:
Security checking if the Security Module (LSM) is used
Automatic recalls when Maint has the value NEX or BAC (two reads are performed)
Automatic recalls when Maint has the value REC, FIR, or LAS
Automatic lookups
DETERMINE and LookUp logic commands
References to StoreIfPresent attributes
Invoking the Store built-in persistent class method on the target attribute of the Standard Ispecs.
The following operations perform logical writes:
FLAG logic command
Automatic update (when the value of Maint is Add, CHG, DEL, PUR)
Invoking the Store built-in persistent class method on the target attribute
Purge logic command
Time Statistics
Time statistics are output as a separate listing, when the TIME option is selected. The listed value shows the average time (in seconds, to two decimal places) each transaction is in the COMSTP program.
If the transaction involves an intermediate operation (for example, execution of a SendMessage logic command), the logged time includes the time up to the final output (not the intermediate output).