rdisp/max_wprun_time is a SAP Parameter attribute which is used to control Maximum work process run time information. This is available within R/3 SAP systems depending on the version and release level.
Below is the standard documentation available and a few details of the attributes values .
This parameter limits the maximum runtime of a process step in a dialog
process. This ensures that long-running programs do not block dialog
processes and therefore prevent online operation.
After the maximum runtime has expired, the program terminates at two
levels:
If the program is currently executing ABAP commands, the ABAP processor
terminates the program.
If the program is hanging in an external command, such as SQL, the
entire work process is terminated after a second time period of a
maximum of 60 seconds, and the user context is reset after the process
restart.
An ABAP short dump is generated in both cases.
The rdisp/scheduler/prio_*/max_runtime parameters (see below) provide
the same functionality as the parameter
See SAP Parameter Documentation for full SAP documentation for this profile parameter.