Loader domain: Summary global statistics

These statistics fields contain the summary global data for the loader.

Summary statistics are not available online.

Table 1. Loader domain: Summary global statistics
DFHSTUP name Description
Library load requests The number of times the loader issued an MVS™ LOAD request to load programs from the DFHRPL or dynamic LIBRARY concatenation into CICS® managed storage. Modules in the LPA are not included in this value. The value includes both program load requests that ran on open TCBs, and program load requests that used the RO (resource-owning) TCB.

 
Library load requests on the RO TCB The number of times the loader issued a program load request that used the RO (resource-owning) TCB. This value is a subset of the number of library loads shown by Library load requests. To calculate the number of program load requests that ran on open TCBs, subtract this value from the value shown by Library load requests.

 
Total loading time The time taken for the number of library loads shown by Library load requests. The value includes both program load requests that ran on open TCBs, and program load requests that used the RO (resource-owning) TCB. The DFHSTUP report expresses this time as hours:minutes:seconds.decimals.

 
Total loading time on the RO TCB The time taken for the number of library loads shown by Library load requests on the RO TCB. This value is a subset of the time shown by Total loading time. To calculate the time taken for program load requests that ran on open TCBs, subtract this value from the value shown by Total loading time. The DFHSTUP report expresses this time as hours:minutes:seconds.decimals.

 
Average loading time The average time taken to load a program. The value is an average including both program load requests that ran on open TCBs, and program load requests that used the RO (resource-owning) TCB. DFHSTUP expresses this time as hours:minutes:seconds.decimals.

 
Average loading time on the RO TCB The average time taken to complete only those program load requests that used the RO (resource-owning) TCB. DFHSTUP expresses this time as hours:minutes:seconds.decimals.

 
Program uses The number of uses of any program by the CICS system.

 
Requests that waited The number of loader domain requests that waited for the loader domain to complete an operation on the program on behalf of another task. Program load requests might wait for the following reasons:
  • The program is being loaded by another task that is running on an open TCB.
  • The loader domain is searching the link pack area (LPA) for the program.
  • A NEWCOPY request or physical load is in progress for the program.

 
Peak waiting Loader requests The maximum number of tasks suspended at one time.

 
Times at peak The number of times the high-water mark indicated by LDGWLRHW was reached. This, along with the previous 2 values, is an indication of the level of contention for loader resource.

 
Total waiting time The suspended time for the number of tasks indicated by the Requests that waited statistic. The DFHSTUP report expresses this time as days-hours:minutes:seconds.decimals.

 
Times DFHRPL re-opened The number of times the loader received an end-of-extent condition during a load operation, and successfully closed and re-opened the DFHRPL or dynamic LIBRARY concatenation and retried the load operation.

 
CDSA

 
Programs removed by compression The total number of program instances removed from storage by the Dynamic Program Storage Compression (DPSC) mechanism.

 
Total Not In Use queue membership time The total program Not-In-Use (NIU) queue membership time. For each program that becomes eligible for removal from storage by the DPSC mechanism, the time between the program becoming eligible and the actual time of its being removed from storage is calculated. This field is the sum of these times for all programs removed by the DPSC mechanism and as such can be greater than the elapsed CICS run time. This field does not include the wait time for those programs reclaimed from the Not-In-Use queue.

The DFHSTUP report expresses this time as days-hours:minutes:seconds.decimals.

 
Average Not In Use queue membership time The average time between a program becoming eligible for removal from storage by the DPSC and the actual time of its removal from storage. The DFHSTUP report expresses this time as hours:minutes:seconds.decimals.

 
Reclaims from Not In Use queue The total number of reclaims that CICS has made from the Not-In-Use (NIU) queue. Reclaims occur when a request is issued for programs currently in the Not-In-Use queue. The reclaimed instance of a program is no longer eligible for program compression (DPSC).

 
Programs loaded but Not In Use The total number of programs on the Not-In-Use (NIU) queue.

 
ECDSA

 
Programs removed by compression The total number of program instances removed from storage by the Dynamic Program Storage Compression (DPSC) mechanism.

 
Total Not In Use queue membership time The total program Not-In-Use (NIU) queue membership time. For each program that becomes eligible for removal from storage by the DPSC mechanism, the time between the program becoming eligible and the actual time of its being removed from storage is calculated. This field is the sum of these times for all programs removed by the DPSC mechanism and as such can be greater than the elapsed CICS run time. This field does not include the wait time for those programs reclaimed from the Not-In-Use queue.

The DFHSTUP report expresses this time as days-hours:minutes:seconds.decimals.

 
Average Not In Use queue membership time The average time between a program becoming eligible for removal from storage by the DPSC and the actual time of its removal from storage. The DFHSTUP report expresses this time as hours:minutes:seconds.decimals.

 
Reclaims from Not In Use queue The total number of reclaims that CICS has made from the Not-In-Use (NIU) queue. Reclaims occur when a request is issued for programs currently in the Not-In-Use queue. The reclaimed instance of a program is no longer eligible for program compression (DPSC).

 
Programs loaded but Not In Use The total number of programs on the Not-In-Use (NIU) queue.

 
SDSA

 
Programs removed by compression The total number of program instances removed from storage by the Dynamic Program Storage Compression (DPSC) mechanism.

 
Total Not In Use queue membership time The total program Not-In-Use (NIU) queue membership time. For each program that becomes eligible for removal from storage by the DPSC mechanism, the time between the program becoming eligible and the actual time of its being removed from storage is calculated. This field is the sum of these times for all programs removed by the DPSC mechanism and as such can be greater than the elapsed CICS run time. This field does not include the wait time for those programs reclaimed from the Not-In-Use queue.

The DFHSTUP report expresses this time as days-hours:minutes:seconds.decimals.

 
Average Not In Use queue membership time The average time between a program becoming eligible for removal from storage by the DPSC and the actual time of its removal from storage. The DFHSTUP report expresses this time as hours:minutes:seconds.decimals

 
Reclaims from Not In Use queue The total number of reclaims that CICS has made from the Not-In-Use (NIU) queue. Reclaims occur when a request is issued for programs currently in the Not-In-Use queue. The reclaimed instance of a program is no longer eligible for program compression (DPSC).

 
Programs loaded but Not In Use The total number of programs on the Not-In-Use (NIU) queue.

 
ESDSA

 
Programs removed by compression The total number of program instances removed from storage by the Dynamic Program Storage Compression (DPSC) mechanism.

 
Total Not In Use queue membership time The total program Not-In-Use (NIU) queue membership time. For each program that becomes eligible for removal from storage by the DPSC mechanism, the time between the program becoming eligible and the actual time of its being removed from storage is calculated. This field is the sum of these times for all programs removed by the DPSC mechanism and as such can be greater than the elapsed CICS run time. This field does not include the wait time for those programs reclaimed from the Not-In-Use queue.

The DFHSTUP report expresses this time as days-hours:minutes:seconds.decimals.

 
Average Not In Use queue membership time The average time between a program becoming eligible for removal from storage by the DPSC and the actual time of its removal from storage. The DFHSTUP report expresses this time as hours:minutes:seconds.decimals.

 
Reclaims from Not In Use queue The total number of reclaims that CICS has made from the Not-In-Use (NIU) queue. Reclaims occur when a request is issued for programs currently in the Not-In-Use queue. The reclaimed instance of a program is no longer eligible for program compression (DPSC).

 
Programs loaded but Not In Use The total number of programs on the Not-In-Use (NIU) queue.

 
RDSA

 
Programs removed by compression The total number of program instances removed from storage by the Dynamic Program Storage Compression (DPSC) mechanism.

 
Total Not In Use queue membership time The total program Not-In-Use (NIU) queue membership time. For each program that becomes eligible for removal from storage by the DPSC mechanism, the time between the program becoming eligible and the actual time of its being removed from storage is calculated. This field is the sum of these times for all programs removed by the DPSC mechanism and as such can be greater than the elapsed CICS run time. This field does not include the wait time for those programs reclaimed from the Not-In-Use queue.

The DFHSTUP report expresses this time as days-hours:minutes:seconds.decimals.

 
Average Not In Use queue membership time The average time between a program becoming eligible for removal from storage by the DPSC and the actual time of its removal from storage. The DFHSTUP report expresses this time as hours:minutes:seconds.decimals.

 
Reclaims from Not In Use queue The total number of reclaims that CICS has made from the Not-In-Use (NIU) queue. Reclaims occur when a request is issued for programs currently in the Not-In-Use queue. The reclaimed instance of a program is no longer eligible for program compression (DPSC).

 
Programs loaded but Not In Use The total number of programs on the Not-In-Use (NIU) queue.

 
ERDSA

 
Programs removed by compression The total number of program instances removed from storage by the Dynamic Program Storage Compression (DPSC) mechanism.

 
Total Not In Use queue membership time The total program Not-In-Use (NIU) queue membership time. For each program that becomes eligible for removal from storage by the DPSC mechanism, the time between the program becoming eligible and the actual time of its being removed from storage is calculated. This field is the sum of these times for all programs removed by the DPSC mechanism and as such can be greater than the elapsed CICS run time. This field does not include the wait time for those programs reclaimed from the Not-In-Use queue.

The DFHSTUP report expresses this time as days-hours:minutes:seconds.decimals.

 
Average Not In Use queue membership time The average time between a program becoming eligible for removal from storage by the DPSC and the actual time of its removal from storage. The DFHSTUP report expresses this time as hours:minutes:seconds.decimals.

 
Reclaims from Not In Use queue The total number of reclaims that CICS has made from the Not-In-Use (NIU) queue. Reclaims occur when a request is issued for programs currently in the Not-In-Use queue. The reclaimed instance of a program is no longer eligible for program compression (DPSC).

 
Programs loaded but Not In Use The total number of programs on the Not-In-Use (NIU) queue.