HP 3000 Manuals HP 3000 Manuals
Chapter 2 SYSTEM INFORMATION Introducing Measurement Interface - Architected Interfaces by Beth Eikenbary--Commercial Systems Division Architected Interfaces (AIF) are a series of services that provide interface products for use by software suppliers. The AIF products provide easy high-performance access, manipulation of system processes and information. The Architected Interface Facility: Measurement Interface (HP36392A) represents the second product in this series. The first product, AIF: OS, provides access to general operating system data definitions and functionality. This second product, AIF: MI, provides access to the system performance information collected by the MPE XL measurement interface. These performance information AIFs are the only HP authorized access of the MPE XL Measurement Interface. In general, Architected Interfaces provide a software layer between non-OS software and internals, which provides controlled access to MPE XL internal data and functionality. This software layer, executing at User Privilege Mode, provides a window into MPE XL internal operations. This window does not supply a direct view of these internals, but rather abstracts the operating system structure based upon customer usage. For example, a management utility needs to know everything about a specific session, but does not need to know the format of the structures content. This abstraction gives users independence from MPE XL details and implementation changes. The interfaces are available on MPE XL Releases 2.1 and later. It is necessary to have either the Pascal or C compilers, since these are the only programming languages supported by the Architected Interface Facility products.