Workload and Performance 35
Workload and Performance
The above figure shows the relationships of the various workloads on the Dedicated Domino
Processors. Domino can take any available CPU capacity (even below the line). The CPW
workload can never rise above the line, and excessive attempts to use CPW resources do not
significantly affect Domino performance. If CPW exceeds its limit, the system will not redirect
Domino resources to non-Domino (CPW) work, and the non-Domino performance
degradation can be dramatic.
For some Domino solution scenarios, you need to work closely with an IBM, Lotus, or IBM
Business Partner representative to determine whether AS/400e server 270 with standard
processor features, 8xx servers, or the new AS/400e Dedicated Server for Domino is most
appropriate for the proposed environment. In particular, Domino applications that require
some degree of integration with DB2 Universal Database for AS/400 data or use some
external program calls (for example, RPG programs or Java) require careful evaluation.
The resources of AS/400e Dedicated Server for Domino are focused primarily on the Domino
workloads (see the following figure). Their ability to deliver superior Domino
price/performance depends on running a workload very close to “pure Domino”.Asmall
percentage of the overall processor capacity (10 to 15%) can be used for non-Domino work,
such as routine system administration tasks and non-Domino programs invoked by the
Domino application.
100%
0%
CPU
Processor CPW
Interactive CPW
Domino resources
Dedicated Domino Processors
10 to
15%
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