Object Code Accelerator Manual

Glossary
Object Code Accelerator Manual—528144-003
Glossary-22
relative pathname
relative pathname. In the Open System Services (OSS) file system and Network File
System (NFS), a pathname that does not begin with a slash (/) character. A relative
pathname is resolved beginning with the current working directory. Contrast with
absolute pathname.
release version update (RVU). A collection of compatible revisions of HP NonStop
operating system software products, identified by an RVU ID, and shipped and
supported as a unit. An RVU consists of the object modules, supporting files, and
documentation for the product revisions. An RVU also includes a set of documentation
for the overall RVU.
rendezvous. A distributed operation that exchanges data to achieve synchronization among
the processor elements of a logical processor.
RVU. See release version update (RVU).
reply. A response to a requester process by a server process. Contrast with request.
request. A message formatted and sent to a server by a requester. Requests also include
status messages such as CPU up and CPU down messages, which are placed on the
intended recipient’s process message queue ($RECEIVE file) by the operating system.
Contrast with reply.
requester. A process that initiates interprocess communication by sending a request to
another process. Contrast with server.
response. See reply.
retryable error. An error condition returned by the file system that can be corrected by
repeating the operation that caused the error. Sometimes operator intervention is
required before the retry, for example to put paper into an empty printer. Contrast with
nonretryable error.
RISC. See reduced instruction-set computing (RISC)
.
RISC instructions. Register-oriented 32-bit machine instructions that are directly executed
on TNS/R processors. RISC instructions execute only on TNS/R systems, not on TNS
systems. Contrast with TNS instructions
.
segment. In general, a contiguous sequence of logically related pages of virtual memory.
The pages of the segment are individually swapped in and out of physical memory as
needed. Within a loadable object file, one of the portions of the file that is mapped as
one unit into virtual memory as the file is loaded. See also code segment and data
segment.
segment ID. A number that identifies an extended data segment and specifies the kind of
extended data segment to allocate.