IBM i series Handbook page 78

Workload and Performance
– Any and all workloads not designated as Domino workloads are considered to be
non-Domino workloads. They should be managed to a maximum of 10 to 15% of the
CPU.
– Stand-alone Java, RPG, COBOL, or C applications are non-Domino workloads.
– Applications can work alongside Domino on the same AS/400e. An example is a
Domino server that uses the *MSF SMTF Services option along with the QMSF task
to process Internet mail through the OS/400 SMTP server. The OS/400 SMTP server
and QMSF task are non-Domino work.
– Domino applications using application integration functions, such as DB2 Universal
Database access or external program calls, are considered non-Domino workloads.
• System administration : iSeries Dedicated Server for Domino can be effectively
managed when there is no Interactive CPW (Interactive CPW = 0) available for
application workloads. Interactive CPW is an approximate value reflecting the portion
of Processor CPW that can be used for workloads performing interactive-based tasks
(5250). The zero interactive CPW is intended to support a single interactive job for
system administrative functions, that is:
– Any job started from a console (green screen) to perform system administration
functions is not considered interactive work if it is the only interactive job running
(single interactive job exception).
– Any system administration job submitted to batch is not considered interactive work.
– Any use of Operations Navigator (GUI administration functions) is not considered
interactive work.
• Interactive workloads : Any task started through a 5250 session (5250 device or 5250
emulation) where the user waits for a response is considered to be interactive work.
– Application processing that uses 5250 interfaces is not supported on the iSeries
Dedicated Server for Domino.
– 5250 print is not supported on the iSeries Dedicated Server for Domino.
Relative performance measurements are derived by performing various monitored and
measured workloads on iSeries and AS/400e servers. The results can be used to compare
relative performance characteristics of processor features offered for servers.
• Simple Mail Users (SMU) : This relative performance measurement is derived by
performing high-volume Lotus Domino mail workloads on Dedicated Domino
processors. SMUs are representative of mail applications, particularly those that do
not perform any database related tasks. SMUs represent the estimated number of
concurrent light mail users for the Dedicated Domino processors. Reported values
reflect 70% processor utilization.
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iSeries Handbook