HP Caliper User's Guide

instruction
dispersal
The process of mapping instructions within bundles to functional units. See “dispersal Event Set”
(p. 313).
instruction
event address
register
(I-EAR)
The component of the Integrity servers processor that records the instruction addresses of data
cache misses for loads, the instruction addresses of data TLB misses, and the instruction addresses
of instruction TLB and cache misses.
See also data event address register (D-EAR).
instruction
pointer (IP)
In the Integrity servers processor family, a register that indicates where the computer is in its
instruction sequence.
instruction
slot
An arrangement of instructions. In the Integrity servers processor family, each instruction bundle
is composed of three instruction slots, numbered 0, 1, and 2. Also known as slot.
Integrity
servers
processor
family
A collection of HP processors using the Itanium 2 architecture. These processors include the
following processors: Itanium 2, Itanium 2 6M, Itanium 2 9M, low-voltage Itanium 2, dual-core
Itanium 2, and Itanium 9300 quad-core processor. Report output from HP Caliper specifies whether
the output refers to the Itanium 2, Itanium 2 6M, Itanium 2 9M, low-voltage Itanium 2, dual-core
Itanium 2, or Itanium 9300 quad-core processor.
IP-EAR Instruction pointer address capture. This is a feature in dual-core Itanium 2 and Itanium 9300
quad-core processors that is intended to facilitate the correlation of performance monitoring
events to instruction pointers.
itlb
measurement
A measurement, provided by the itlb measurement configuration file, that measures and reports
instruction translation lookaside buffer (TLB) misses.
itlb_miss
measurement
The non-preferred name for the itlb measurement. This name was used in releases prior to
Release 3.9.
latency bucket A grouping of latency data associated with data accesses serviced by particular levels of CPU
cache and system memory. The dcache measurement provides latency bucket information.
leaf routine A routine that is a leaf in the call graph of a program (that is, a routine that calls no other routines).
measurement An activity performed by HP Caliper to quantify the performance of an application. Each run of
HP Caliper uses a particular measurement, which you can specify in the command line. A
measurement is actually the name of a measurement configuration file that contains parameter
settings for the measurement to be made. See “HP Caliper Measurement Configuration Files”
(p. 57).
measurement
configuration
file
A file that HP Caliper uses to perform a particular measurement, such as scgprof or icache.
Each measurement has a corresponding measurement configuration file. See “HP Caliper
Measurement Configuration Files” (p. 57).
measurement
run folder
In the HP Caliper GUI, a folder that contains information about the types of data available for a
single measurement run. It can also contain the collection specification used to collect the data in
the folder.
nop
A “no-operation” instruction.
options file A text file containing a list of HP Caliper command-line options and possibly other command-line
syntax, including a measurement configuration file and program to be measured.
overview
measurement
A measurement that enables collecting fprof, dcache, and cstack data in one single collection
run.
per-process
measurement
A measurement performed on individual processes, compared with a system-wide measurement
performed on all CPUs in the system.
352 Glossary