Transient Data Report

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.

Figure 84. The Transient Data Report
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

Table 208. Fields in the Transient Data Report
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

Related reference
Back to full list of DFH0STAT reports
The DFH0STAT reports
Interpreting these statistics
Interpreting transient data statistics
Full listing and DFHSTUP reports for these statistics
Transient data statistics
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