JCT Access Method Statistics Section

This section contains JCT data set information.

Offsets Name Length Format Description
0 0 R84SZJCT 4 binary Size of a JCT (in bytes).
4 4 R84REDIO 4 binary Number of JCT read I/Os.
8 8 R84WRTIO 4 binary Number of JCT write I/Os.
12 C R84JBADD 4 binary Number of jobs added to the job queue.
16 10 R84JBDEL 4 binary Number of jobs deleted from the job queue.
JCT data space information:
20 14 R84DSPFL 1 binary JCT data space flag one
Value
Meaning when set
X'80'
The JCT data space was disabled during some portion of the interval. The remainder of the JCT data space information is zero.
21 15   3   Reserved.
24 18 R84DSPSZ 4 binary Maximum size of JCT data space, in hundredths of a megabyte.
JCT data space page fault information:
28 1C R84RDINS 4 binary Number of JCT read requests where the corresponding JCT data space page(s) were in central storage.
32 20 R84PRINS 4 binary Percent of JCT read requests where the corresponding JCT data space page(s) were in central storage, in hundredths of a percent.
36 24 R84RDNIS 4 binary Number of JCT read requests where the corresponding JCT data space page(s) were not in central storage.
40 28 R84PRNIS 4 binary Percent of JCT read requests where the corresponding JCT data space page(s) were not in central storage.
44 2C R84WTINS 4 binary Number of JCT write requests where the corresponding JCT data space page(s) were in central storage.
48 30 R84PWINS 4 binary Percent of JCT write requests where the corresponding JCT data space pages were in central storage, in hundredths of a percent.
52 34 R84WTNIS 4 binary Number of JCT write requests where the corresponding data space page(s) were not in central storage.
56 38 R84PWNIS 4 binary Percent of JCT write requests where the corresponding JCT data space page(s) were not in central storage, in hundredths of a percent.
JCT data space page usage information:
60 3C R84DUSMN 4 binary Minimum number of JCT data space pages in use.
64 40 R84DUSAV 4 binary Average number of JCT data space pages in use.
68 44 R84DUSMX 4 binary Maximum number of JCT data space pages in use.
JCT data space page utilization:
72 48 R84DUTMN 4 binary Minimum use of JCT data space pages. This value shows the percentage of the total JCT data space pages that contain allocated JCTs. It is measured in hundredths of a percent.
76 4C R84DUTAV 4 binary Average percentage of use of JCT data space pages. This value shows the percentage of the total JCT data space pages that contain allocated JCTs. It is measured in hundredths of a percent.
80 50 R84DUTMX 4 binary Maximum percentage of use of JCT data space pages. This value shows the percentage of the total JCT data space pages that contain allocated JCTs. It is measured in hundredths of a percent.
84 54 R84PGSRL 4 binary Number of JCT data space pages released.
Job queue element (JQE) information:
88 58 R84JQ0SZ 4 binary JQE0 table size, in hundredths of a kilobyte.
92 5C R84JQ1SZ 4 binary JQE1 table size, in hundredths of a kilobyte.
96 60 R84JQ2SZ 4 binary JQE2 table size in, hundredths of a kilobyte.
100 64 R84JQ3SZ 4 binary JQE3 table size, in hundredths of a kilobyte.
104 68 R84JQ4SZ 4 binary JQE4 table size, in hundredths of a kilobyte.
JQE4 storage use information:
108 6C R84JUSMN 4 binary Minimum number of JQE4s in use during interval.
112 70 R84JUSAV 4 binary Average number of JQE4s in use during interval.
116 74 R84JUSMX 4 binary Maximum number of JQE4s in use during interval.
120 78 R84JUTMN 4 binary Minimum percentage of total JQE4 pages that contained allocated JQE4s during this interval, in hundredths of a percent.
124 7C R84JUTAV 4 binary Average percentage of total JQE4 pages that contained allocated JQE4s during this interval, in hundredths of a percent.
128 80 R84JUTMX 4 binary Maximum percentage of total JQE4 pages that contained allocated JQE4s during this interval, in hundredths of a percent.