This section contains the following statistics:
These statistics fields contain the global data collected by the loader domain. The loader domain maintains global statistics to assist the user in tuning and accounting.
These statistics can be accessed online using the EXEC CICS® COLLECT STATISTICS PROGRAM command, and are mapped by the DFHLDGDS DSECT. For programming information about the EXEC CICS COLLECT STATISTICS command, see the CICS System Programming Reference manual.
DFHSTUP name | Field name | Description |
---|---|---|
Library load requests | LDGLLR | is the number of times the loader has issued an MVS™ LOAD request
to load programs from the DFHRPL library concatenation into CICS managed storage.
Modules in the LPA are not included in this figure.
Reset characteristic: reset to zero
|
Total loading time | LDGLLT | is the time taken for the number of library loads indicated
by LDGLLR. The DFHSTUP report expresses this time as hours:minutes:seconds.decimals; however, the DSECT field contains a 4-byte field which expresses the
time in 16-microsecond units.
Reset characteristic: reset to zero
|
Average loading time | is the average time to load a program. This value is calculated
offline by DFHSTUP and hence is not available to online users. DFHSTUP expresses
this time as hours:minutes:seconds.decimals.
Reset characteristic: none
|
|
Program uses | LDGPUSES | is the number of uses of any program by the CICS system.
Reset characteristic: not reset
|
Waiting requests | LDGWLR | is the number of loader domain requests that are currently forced to suspend due to the loader domain currently performing
an operation on that program on behalf of another task. These operations
could be:
Reset characteristic: not reset
|
Requests that waited | LDGWTDLR | is the number of loader domain requests that were forced to suspend due to the loader domain performing an operation
on that program on behalf of another task. These operations could be:
This figure is the total number of tasks that have waited, and does not include those that are currently waiting (LDGWLR). Reset characteristic: reset to zero
|
Peak waiting Loader requests | LDGWLRHW | is the maximum number of tasks suspended at one time.
Reset characteristic: reset to current value (LDGWLR)
|
Times at peak | LDGHWMT | is the number of times the high watermark level indicated
by LDGWLRHW was reached.
This, along with the fields; LDGWTDLR and LDGWLRHW, is an indication of the level of contention for loader resource. Reset characteristic: reset to 1
|
Total waiting time | LDGTTW | is the suspended time for the number of tasks indicated
by LDGWTDLR. The DFHSTUP report expresses this time as hours:minutes:seconds.decimals; however, the DSECT field contains a 4-byte field which expresses the
time in 16-microsecond units.
Reset characteristic: reset to zero
|
Times DFHRPL re-opened | LDGDREBS | is the number of times the loader received an end-of-extent
condition during a LOAD and successfully closed and re-opened the DFHRPL library
and retried the LOAD.
Reset characteristic: reset to zero
|
DFHSTUP name | Field name | Description |
---|---|---|
Programs removed by compression | LDGDPSCR | is the number of program instances removed from storage
by the Dynamic Program Storage Compression (DPSC) mechanism.
Reset characteristic: reset to zero
|
Total Not In Use queue membership time | LDGDPSCT | is the 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 hours:minutes:seconds.decimals; however, the DSECT field contains the time as a store clock (STCK) value. Reset characteristic: reset to zero
|
Average Not In Use queue membership time | is the average length of time that a program is eligible
for removal from storage by the DPSC mechanism. This value is calculated by
DFHSTUP.
The DFHSTUP report expresses this time as hours:minutes:seconds.decimals. Reset characteristic: none
|
|
Reclaims from Not In Use queue | LDGRNIU | is the 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).
Reset characteristic: reset to zero
|
Programs loaded but Not In Use | LDGPNIU | is the number of programs on the Not-In-Use (NIU) queue.
Reset characteristic: not reset
|
Amount of DSA occupied by Not In Use programs | LDGCNIU | is the current amount of CDSA storage which is occupied
by Not-In-Use (NIU) programs.
Reset characteristic: not reset
|
DFHSTUP name | Field name | Description |
---|---|---|
Programs removed by compression | LDGDPSCR | is the number of program instances removed from storage
by the Dynamic Program Storage Compression (DPSC) mechanism.
Reset characteristic: reset to zero
|
Total Not In Use queue membership time | LDGDPSCT | is the 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 hours:minutes:seconds.decimals; however, the DSECT field contains the time as a store clock (STCK) value. Reset characteristic: reset to zero
|
Average Not In Use queue membership time | is the average length of time that a program is eligible
for removal from storage by the DPSC mechanism. This value is calculated by
DFHSTUP.
The DFHSTUP report expresses this time as hours:minutes:seconds.decimals. Reset characteristic: none
|
|
Reclaims from Not In Use queue | LDGRNIU | is the 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).
Reset characteristic: reset to zero
|
Programs loaded but Not In Use | LDGPNIU | is the number of programs on the Not-In-Use (NIU) queue.
Reset characteristic: not reset
|
Amount of DSA occupied by Not In Use programs | LDGCNIU | is the current amount of ECDSA storage which is occupied
by Not-In-Use (NIU) programs.
Reset characteristic: not reset
|
DFHSTUP name | Field name | Description |
---|---|---|
Programs removed by compression | LDGDPSCR | is the number of program instances removed from storage
by the Dynamic Program Storage Compression (DPSC) mechanism.
Reset characteristic: reset to zero
|
Total Not In Use queue membership time | LDGDPSCT | is the 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 hours:minutes:seconds.decimals; however, the DSECT field contains the time as a store clock (STCK) value. Reset characteristic: reset to zero
|
Average Not In Use queue membership time | is the average length of time that a program is eligible
for removal from storage by the DPSC mechanism. This value is calculated by
DFHSTUP.
The DFHSTUP report expresses this time as hours:minutes:seconds.decimals. Reset characteristic: none
|
|
Reclaims from Not In Use queue | LDGRNIU | is the 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).
Reset characteristic: reset to zero
|
Programs loaded but Not In Use | LDGPNIU | is the number of programs on the Not-In-Use (NIU) queue.
Reset characteristic: not reset
|
Amount of DSA occupied by Not In Use programs | LDGCNIU | is the current amount of SDSA storage which is occupied
by Not-In-Use (NIU) programs.
Reset characteristic: not reset
|
DFHSTUP name | Field name | Description |
---|---|---|
Programs removed by compression | LDGDPSCR | is the number of program instances removed from storage
by the Dynamic Program Storage Compression (DPSC) mechanism.
Reset characteristic: reset to zero
|
Total Not In Use queue membership time | LDGDPSCT | is the 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 hours:minutes:seconds.decimals; however, the DSECT field contains the time as a store clock (STCK) value. Reset characteristic: reset to zero
|
Average Not In Use queue membership time | is the average length of time that a program is eligible
for removal from storage by the DPSC mechanism. This value is calculated by
DFHSTUP.
The DFHSTUP report expresses this time as hours:minutes:seconds.decimals. Reset characteristic: none
|
|
Reclaims from Not In Use queue | LDGRNIU | is the 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).
Reset characteristic: reset to zero
|
Programs loaded but Not In Use | LDGPNIU | is the number of programs on the Not-In-Use (NIU) queue.
Reset characteristic: not reset
|
Amount of DSA occupied by Not In Use programs | LDGCNIU | is the current amount of ESDSA storage which is occupied
by Not-In-Use (NIU) programs.
Reset characteristic: not reset
|
DFHSTUP name | Field name | Description |
---|---|---|
Programs removed by compression | LDGDPSCR | is the number of program instances removed from storage
by the Dynamic Program Storage Compression (DPSC) mechanism.
Reset characteristic: reset to zero
|
Total Not In Use queue membership time | LDGDPSCT | is the 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 hours:minutes:seconds.decimals; however, the DSECT field contains the time as a store clock (STCK) value. Reset characteristic: reset to zero
|
Average Not In Use queue membership time | is the average length of time that a program is eligible
for removal from storage by the DPSC mechanism. This value is calculated by
DFHSTUP.
The DFHSTUP report expresses this time as hours:minutes:seconds.decimals. Reset characteristic: none
|
|
Reclaims from Not In Use queue | LDGRNIU | is the 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).
Reset characteristic: reset to zero
|
Programs loaded but Not In Use | LDGPNIU | is the number of programs on the Not-In-Use (NIU) queue.
Reset characteristic: not reset
|
DFHSTUP name | Field name | Description |
---|---|---|
Programs removed by compression | LDGDPSCR | is the number of program instances removed from storage
by the Dynamic Program Storage Compression (DPSC) mechanism.
Reset characteristic: reset to zero
|
Total Not In Use queue membership time | LDGDPSCT | is the 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 hours:minutes:seconds.decimals; however, the DSECT field contains the time as a store clock (STCK) value. Reset characteristic: reset to zero
|
Average Not In Use queue membership time | is the average length of time that a program is eligible
for removal from storage by the DPSC mechanism. This value is calculated by
DFHSTUP.
The DFHSTUP report expresses this time as hours:minutes:seconds.decimals. Reset characteristic: none
|
|
Reclaims from Not In Use queue | LDGRNIU | is the 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).
Reset characteristic: reset to zero
|
Programs loaded but Not In Use | LDGPNIU | is the number of programs on the Not-In-Use (NIU) queue.
Reset characteristic: not reset
|
Amount of DSA occupied by Not In Use programs | LDGCNIU | is the current amount of ERDSA storage which is occupied
by Not-In-Use (NIU) programs.
Reset characteristic: not reset
|
Summary statistics are not available online.
These statistics fields contain the summary global data for the loader.
DFHSTUP name | Description |
---|---|
Library load requests | is the total number of times the loader has issued an MVS LOAD
request to load programs from the DFHRPL library concatenation into CICS managed storage.
Modules in the LPA are not included in this figure.
|
Total loading time | is the total time taken for the number of library loads
indicated by 'Library load requests'. The DFHSTUP report expresses this time
as days-hours:minutes:seconds.decimals.
|
Average loading time | is the average time to load a program from the DFHRPL
library concatenation into CICS managed storage. This value is expressed
as minutes:seconds.decimals.
|
Program uses | is the total number of uses of any program by the CICS system.
|
Requests that waited | is the total number of loader domain requests that were
forced to suspend due to the loader domain performing an operation on that
program on behalf of another task. These operations could be:
|
Peak waiting Loader requests | is the peak number of tasks suspended at one time.
|
Times at peak | is the total number of times the peak level indicated
by the previous statistic was reached.
This, along with the previous 2 values, is an indication of the level of contention for loader resource.
|
Total waiting time | is the total 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 | is the total number of times the loader received an end-of-extent
condition during a LOAD and successfully closed and re-opened the DFHRPL library
and retried the LOAD.
|
CDSA
|
|
Programs removed by compression | is the total number of program instances removed from
storage by the Dynamic Program Storage Compression (DPSC) mechanism.
|
Total Not In Use queue membership time | is 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 | is the average time between a program becoming eligible
for removal from storage by the DPSC and the actual time of its removal from
storage. This statistic is expressed in minutes:seconds.decimals.
|
Reclaims from Not In Use queue | is 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 | is the total number of programs on the Not-In-Use (NIU)
queue.
|
ECDSA
|
|
Programs removed by compression | is the total number of program instances removed from
storage by the Dynamic Program Storage Compression (DPSC) mechanism.
|
Total Not In Use queue membership time | is 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 | is the average time between a program becoming eligible
for removal from storage by the DPSC and the actual time of its removal from
storage. This statistic is expressed in minutes:seconds.decimals.
|
Reclaims from Not In Use queue | is 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 | is the total number of programs on the Not-In-Use (NIU)
queue.
|
SDSA
|
|
Programs removed by compression | is the total number of program instances removed from
storage by the Dynamic Program Storage Compression (DPSC) mechanism.
|
Total Not In Use queue membership time | is 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 | is the average time between a program becoming eligible
for removal from storage by the DPSC and the actual time of its removal from
storage. This statistic is expressed in minutes:seconds.decimals.
|
Reclaims from Not In Use queue | is 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 | is the total number of programs on the Not-In-Use (NIU)
queue.
|
ESDSA
|
|
Programs removed by compression | is the total number of program instances removed from
storage by the Dynamic Program Storage Compression (DPSC) mechanism.
|
Total Not In Use queue membership time | is 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 | is the average time between a program becoming eligible
for removal from storage by the DPSC and the actual time of its removal from
storage. This statistic is expressed in minutes:seconds.decimals.
|
Reclaims from Not In Use queue | is 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 | is the total number of programs on the Not-In-Use (NIU)
queue.
|
RDSA
|
|
Programs removed by compression | is the total number of program instances removed from
storage by the Dynamic Program Storage Compression (DPSC) mechanism.
|
Total Not In Use queue membership time | is 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 | is the average time between a program becoming eligible
for removal from storage by the DPSC and the actual time of its removal from
storage. This statistic is expressed in minutes:seconds.decimals.
|
Reclaims from Not In Use queue | is 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 | is the total number of programs on the Not-In-Use (NIU)
queue.
|
ERDSA
|
|
Programs removed by compression | is the total number of program instances removed from
storage by the Dynamic Program Storage Compression (DPSC) mechanism.
|
Total Not In Use queue membership time | is 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 | is the average time between a program becoming eligible
for removal from storage by the DPSC and the actual time of its removal from
storage. This statistic is expressed in minutes:seconds.decimals.
|
Reclaims from Not In Use queue | is 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 | is the total number of programs on the Not-In-Use (NIU)
queue.
|