| Offsets | Name | Length | Format | Description | |
|---|---|---|---|---|---|
| 0 | SMF99_SWPP_PNUM | 4 | binary | Period number. | |
| 4 | 4 | SMF99_SWPP_BW | 4 | binary | Size of each x bucket width. X is the average time an address space in the service class period is logically swapped or swapped on expanded storage in milliseconds. |
| 8 | 8 | SMF99_SWPP_LSTX | 4 | binary | Last plotted x bucket index. |
| * | 4 | binary | Reserved. | ||
| 16 | 10 | SMF99_SWPP_POINTS _OF | 4 | binary | Offset of point entries. |
| 20 | 14 | SMF99_SWPP_POINTS _ON | 2 | binary | Number of point entries. |
| 22 | 16 | SMF99_SWPP_POINTS _LN | 2 | binary | Length of a point entry. |