HP-UX 11i June 2004 Release Notes

HP-UX 11i Version 1 Release Overview
What is HP-UX 11i Version 1?
Chapter 3
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Performance Considerations
The performance of HP servers and applications with the HP-UX 11i v1 Operating
Environments is as good or better as compared to HP-UX 11.0 installed in the same
configuration. It must be kept in mind, however, that in the vast majority of cases,
HP-UX is likely to be installed as part of one of the predefined HP-UX 11i Operating
Environments.
The HP-UX 11i v1 Operating Environments provide numerous benefits, including lower
cost as well as simplification of product ordering, installation, integration, and support.
While the HP-UX 11i v1 Operating Environments provide these desirable benefits, they
all involve more software components and daemons than a base HP-UX 11.0 or HP-UX
11i operating system. Because of this, an Operating Environment may have somewhat
greater system overhead compared to a base operating system installation. This increase
in system overhead, while modest, can nevertheless make it erroneously appear that
system and application performance are degraded with HP-UX 11i v1 as compared to
HP-UX 11.0. In fact, performance with HP-UX 11i v1 is generally better than HP-UX
11.0 when the software configurations are the same.
While not recommended, one of the options for installing HP-UX 11i v1 is as a base
operating system only, without an Operating Environment. Installing HP-UX 11i v1 as a
base operating system will give the greatest performance and the lowest system
overhead but eliminates the advantages provided by the HP-UX 11i Operating
Environments.