01. Work Process
The work processes are special programs in charge of some
specific tasks. Using client/server terminology, a work process is a service
offered by a server and requested by a client.
Work processes make use of two special areas: paging and
roll. The paging area holds application program data such as internal tables
or report listings. The roll area holds the user context data entered in
previous dialog steps and other control and user information such as authorizations.
Where there is main memory available, these areas are held in the main memory of
application servers; otherwise they are paged out or rolled out to
physical disk files.
02. Work Processes Types
There are several types of work processes: dialog, background,
update, enqueue, and spool. Additionally, the R/3 runtime system includes three
other special types of services: message service, gateway, and the system log collector.
A group made of a dispatcher and a set of work processes
is known as the application server.
Tcode to monitor work process is SM50
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