Displaying available memory (REGION SIZE)
Selecting option 1 (REGION SIZE) on the Utilities Menu will display an example of a condensed screen of memory and storage specifications available for debugging. This menu screen is similar to the screen displayed when you enter a SHOW REGION command from within a Code Debug TSO debugging session. The condensed storage specification screen is displayed in the following figure.
Code Debug TSO Storage Specifications
| Percent TSO storage used |
| ----10---20---30---40---50---60---70---80---90--- |
| [ ] |
| <16m ***** |
| >16m * |
| Current usage |
| 0.44 Mb Below ( private ) |
| 0.43 Mb Below ( system ) |
| 0.71 Mb Above ( private ) |
| 9.21 Mb Above ( system ) |
| |
| System information |
| Region size below the line ====> 4.06 Mb |
| Region size above the line ====> 32.00 Mb |
|_________________________________________________________________|
The following guidelines give you some idea as to what the memory requirements are for the different Code Debug TSO execution environments:
BATCH | 1,500,000 bytes |
TSO | 1,500,000 bytes |
IMS | 2,000,000 bytes |
BTS | 2,500,000 bytes |
Db2 | 2,000,000 bytes |
If you are using DATACOM/DB, IDMS/DB, or System 2000, the recommended memory is 2,000,000 bytes.
The listed figures are approximate; your actual memory requirements will vary depending on the size of the program being debugged. The amount of memory required by Code Debug TSO is related to the number of statements in each program that has a DDIO loaded into memory.