Figure 84 shows the format of the Transient Data Report. This report is produced using the EXEC CICS® COLLECT STATISTICS TDQUEUE command. The statistics data is mapped by the DFHTQGDS DSECT. The field headings and contents are described in Table 208.
Applid IYK2Z1V2 Sysid CJB2 Jobname CI07CJB2 Date 12/17/2004 Time 08:44:37 CICS 6.4.0 PAGE 55
Transient Data
Transient data reads . . . . . . . . . . : 0
Transient data writes. . . . . . . . . . : 0
Transient data formatting writes . . . . : 0
Control interval size. . . . . . . . . . : 1,536
Control intervals in the DFHINTRA dataset: 3,900
Peak control intervals used. . . . . . . : 1
Times NOSPACE on DFHINTRA occurred . . . : 0
Transient data strings . . . . . . . . . : 3
Times Transient data string in use . . . : 0
Peak Transient data strings in use . . . : 0
Times string wait occurred . . . . . . . : 0
Peak users waiting on string . . . . . . : 0
Transient data buffers . . . . . . . . . : 5
Times Transient data buffer in use . . . : 0
Peak Transient data buffers in use . . . : 0
Peak buffers containing valid data . . . : 0
Times buffer wait occurred . . . . . . . : 0
Peak users waiting on buffer . . . . . . : 0
I/O errors on the DFHINTRA dataset . . . : 0
Field Heading | Description |
---|---|
Transient data reads | The number of times a CI has to be read from
disk. Increasing the buffer allocation decreases this activity.
Source field: TQGACTGT |
Transient data writes | The number of WRITEs to the intrapartition
transient data set. This includes both WRITEs needed for recovery and WRITEs
forced by the buffer being needed to accommodate another CI. I/O activity
caused by the latter reason can be minimized by increasing the buffer allocation.
Source field: TQGACTPT |
Transient data formatting writes | The number of times a new CI was written
at the end of the data set in order to increase the amount of available space.
Source field: TQGACTFT |
Control interval size | The size of the control interval, expressed
in bytes.
Source field: TQGACISZ |
Control intervals in the DFHINTRA dataset | The current number of control intervals active
within the intrapartition data set, DFHINTRA.
Source field: TQGANCIS |
Peak control intervals used | The peak value of the number of control intervals
concurrently active in the system.
Source field: TQGAMXCI |
Times NOSPACE on DFHINTRA occurred | The number of times that a NOSPACE condition
has occurred.
Source field: TQGANOSP |
Transient data strings | The number of strings currently active.
Source field: TQGSTSTA |
Times Transient data string in use | The number of times a string was accessed.
Source field: TQGSTNAL |
Peak Transient data strings in use | The peak number of strings concurrently accessed
in the system.
Source field: TQGSMXAL |
Times string wait occurred | The number of times that tasks had to wait
because no strings were available.
Source field: TQGSTNWT |
Peak users waiting on string | The peak number of concurrent string waits
in the system.
Source field: TQGSMXWT |
Transient data buffers | The number of transient data buffers specified
in the system initialization table (SIT) or in the SIT overrides. The number
of buffers allocated may exceed the number requested.
Source field: TQGANBFA |
Times Transient data buffer in use | The number of times intrapartition buffers
have been accessed.
Source field: TQGATNAL |
Peak Transient data buffers in use | The peak value of the number of concurrent
intrapartition buffer accesses.
Source field: TQGAMXAL |
Peak buffers containing valid data | The peak number of intrapartition buffers
that contain valid data.
Source field: TQGAMXIU |
Times buffer wait occurred | The number of times a request was queued
because all buffers were allocated to other tasks. A buffer wait also occurs
if the required control interval is already in a locked buffer, and therefore
unavailable, even if there are other buffers available.
Source field: TQGATNWT |
Peak users waiting on buffer | The peak number of requests queued because
no buffers were available.
Source field: TQGAMXWT |
I/O errors on the DFHINTRA dataset | The number of input/output errors that have
occurred on the DFHINTRA data set.
Source field: TQGACTIO |