High Virtual Memory Usage section
The optional High Virtual Memory Usage section provides information about the high virtual memory usage above the 2-gigabyte line.
See Figure 1 for an example of the High Virtual Memory Usage section.
| Field Heading | Meaning |
|---|---|
| BYTES | The MIN, MAX, and AVG values for the number of bytes in PRIVATE, SHARED, and COMMON memory objects allocated with the indicated job as the owner. In addition, the PEAK useable storage since the start of the job are shown. Unlike MIN, MAX and AVG, the PEAK values report usable storage only. Hidden storage, like guard areas, are not included so that the reported PEAK value may be smaller than the MIN, MAX or AVG values. |
| MEMORY OBJECTS | The MIN, MAX, and AVG values for the number of PRIVATE, SHARED, and COMMON memory objects allocated with the indicated job. If Enhanced DAT Facility is installed, fixed memory objects and shared memory objects that are backed in 1 MB frames are reported. If Enhanced DAT Facility 2 is installed, fixed memory objects that are backed in 2 GB frames are reported. |
| 1 MB FRAMES | The MIN, MAX, and AVG values for the number of 1 MB frames that are used by FIXED and PAGEABLE memory objects with the indicated job as the owner (only available with Enhanced DAT Facility). The PAGEABLE value also includes 1 MB frames that are used by DREF memory objects. Frames that are either used by shared 1 MB pages or to satisfy 4 KB space requests on a constrained system are not included. |
| 2 GB FRAMES | The MIN, MAX, and AVG values for the number of 2 GB frames that are used by FIXED memory objects with the indicated job as the owner (only available with Enhanced DAT Facility 2). |