EPTRACE Manual

Glossary
EPTRACE Manual—528811-002
Glossary-7
library client
it can be a system-managed collection of preloaded routines. Source-code libraries fall
outside the scope of this glossary.
library client. A program or another library that uses routines or variables from that library.
library file. See library.
linking. The operation of collecting, connecting, and relocating code and data blocks from
one or more separately compiled object files to produce a target object file.
load. (1) To transfer the HP NonStop™ operating system image or a program from disk into
a computer’s memory so that the operating system or program can run.
local millicode. Emulation millicode routines that are physically copied into each TNS
program code file when accelerated for TNS/E. These are a small and frequently used
subset of the full set of accelerated-mode millicode routines located in the system’s
TNS Emulation Library. The program’s calls to its local copy of these routines are
faster and more compact than DLL calls to the external library.
logical processor. See processor.
logical segment. A single data area consisting of one or more consecutive 128-kilobyte
unitary segments that is dynamically allocated by a process. The two types of logical
segments are selectable segments and flat segments. See also selectable segment
and flat segment.
logical processor. The combination of equivalent processor elements in the processor
slices that are running in the same instruction stream in loose lock-step.
login. The activity by which a user establishes a locally authenticated identity on a server.
Each login has one login name.
login name. A user name associated with a session.
logon sequence. The process through which the HP NonStop™ server to be managed is
determined, the security constraints to interact with that server are met, and a
connection with that server is established.
main memory. Data storage, specifically the chips that store the programs and data
currently in use by a processor.
memory manager. An HP NonStop™ operating system process that implements the paging
scheme for virtual memory. This process services requests generated by different
interrupt handlers as well as by other system processes.
memory page. A unit of virtual storage. In TNS systems, a memory page contains 2048
bytes. In TNS/R systems, the page size is determined by the memory manager and
can vary, depending on the processor type.