Program load time

The program load time is the total elapsed time during which the user task waited for program fetches from the DFHRPL program library. Only fetches for programs with installed program definitions or autoinstalled as a result of application program requests are included in this figure. Installed programs residing in the LPA are not included because they do not incur a physical fetch from a program library.
Figure 1. Program load time
 
  │                                                                               │
  │←────────────────────────────────Response Time────────────────────────────────→│
  │                                    ↑                                          │
 S│                                    │                                          │S
 T│                                    │                                          │T
 A│←───────────Suspend Time───────────→│←─────────────Dispatch Time──────────────→│O
 R│              ↑      ↑              │       ↑                            ↑     │P
 T│              │      │              │       │                            │     │
  │     First    │      │              │       │                            │     │T
 T│←──Dispatch──→│      │←──Dispatch──→│       │←─────────CPU Time─────────→│     │I
 I│     Wait     │      │     Wait     │   ↑   │      ↑                     │     │M
 M│              │      │              │   │   │      │                     │     │E
 E│              │                         │          │                           │
  │              │                         │←─PCload─→│                           │
  │                                        │   Time   │                           │
  │                                        │          │                           │
 

Figure 1 shows an example of the relationship between the program load time field (owner: DFHPROG, field ID: 115) and the transaction dispatch time (owner: DFHTASK, field ID: 007) and the transaction suspend time (owner: DFHTASK, field ID: 014).