Object Code Accelerator Manual

Glossary
Object Code Accelerator Manual—528144-003
Glossary-12
Intel® Itanium® instruction region
Intel® Itanium® instruction region. The region of a TNS object file that contains Itanium
instructions and the tables necessary to execute the instructions in accelerated mode
on a TNS/E system. The Object Code Accelerator (OCA) creates this region and writes
it into the TNS object file. A TNS object file that contains an Itanium instruction region
can execute in accelerated mode on TNS/E systems. Contrast with native.
Intel® Itanium® instruction region loading. Mapping the Itanium instructions and any
tables necessary at runtime into memory from the Itanium instruction region of a TNS
object file, performed when deemed necessary by the TNS emulation software on a
TNS/E system.
Intel® Itanium® word. An instruction-set-defined unit of memory. An Itanium word is 4
bytes (32 bits) wide, beginning on any 4-byte boundary in memory. Contrast with TNS
word and word. See also native.
interpreted mode. See TNS interpreted mode.
interactive mode. A mode of operation that is characterized by having the same input and
output device (a terminal or a process) for the session. If a terminal is used, a person
enters a command and presses Return. If a process is used, the system interface waits
for the process to send a request and treats the process in the same manner as a
terminal. Contrast with noninteractive mode.
interrupt. The mechanism by which a processor module is notified of an asynchronous
event that requires immediate processing.
interval timer. A 16-bit register that is incremented every microsecond.
IOP. See input/output process (IOP).
IPC. Seeinterprocess communication (IPC).
Kernel subsystem. In G-series and H-series release version updates (RVUs), the
subsystem for configuration and management of the Subsystem Control Facility (SCF)
subsystem managers that are generic processes, some system attributes, and the
ServerNet X and Y fabrics.
Kernel subsystem manager process. The graphical user interface (GUI) that starts and
manages other generic processes, some system attributes, and the ServerNet X and Y
fabrics in G-series release version updates (RVUs). The $ZZKRN Kernel subsystem
manager process is started and managed by the $ZPM persistence manager process.
Kernel-Managed Swap Facility (KMSF). A facility by which the operating system manages
virtual memory using swap files that it owns. Each processor has at least one
kernel-managed swap file that provides the swap space needs of all of its processes.
key-sequenced file. A file in which each new record is stored in sequence by primary key
value, and whose primary key is either a user-defined or a system-defined value.