HP Caliper User's Guide

cpu_metrics
measurement
The non-preferred name for the cpu measurement. This name was used in releases prior to Release
3.9.
cstack
measurement
A measurement, provided by the cstack measurement configuration file, that measures and
reports a sampled call stack profile, produced by periodically sampling the application program
counter and each of its thread's call stacks.
cycles
measurement
A measurement, provided by the cycles measurement configuration file, that measures and
reports a flat profile of the instruction pointers (IPs).
data cache
miss
A failure that occurs when a request for data is made and the data cache does not have the data
in residence at the time of the request. The opposite of a data cache hit, which occurs when the
request can be satisfied.
data event
address
register
(D-EAR)
The component of the Integrity servers processor that records the data addresses of data cache
misses for loads and the data addresses of data TLB misses.
See also instruction event address register (I-EAR).
data
speculation
The execution of a memory load prior to a store which preceded it and which might potentially
alias with it. Data speculation loads are also referred to as advance loads. See “dspec Event Set”
(p. 315).
databases
directory
The directory where output databases are created for each data collection run of HP Caliper,
unless you use the -d option. By default, the databases directory is a directory called
.hp_caliper_databases in your current directory. You can override this by setting the
CALIPER_DATABASES environment variable to point to another location.
dataset A set of performance data collected by a single HP Caliper measurement run. Examples of datasets
are: Run Summary, Memory Usage, Process Tree, Histogram, Call Graph, and so forth. Each HP
Caliper measurement run produces several datasets.
dcache
measurement
A measurement, provided by the dcache measurement configuration file, that measures and
reports data cache misses as well as other data cache metrics.
dcache_miss
measurement
The non-preferred name for the dcache measurement. This name was used in releases prior to
Release 3.9.
disassembly
listing
A source listing in HP Caliper reports with disassembly code for the top performance bottlenecks.
Disassembly listings show instruction templates and symbolic representations of branch targets.
dtlb
measurement
A measurement, provided by the dtlb measurement configuration file, that measures and reports
data translation lookaside buffer (TLB) misses.
dtlb_miss
measurement
The non-preferred name for the dtlb measurement. This name was used in releases prior to
Release 3.9.
ecount
measurement
A measurement, provided by the ecount measurement configuration file, that measures and
reports total CPU event counts.
event address
register (EAR)
The component of the Integrity servers processor that records the instruction and data addresses
of data cache misses for loads, the instruction and data addresses of data TLB misses, and the
instruction addresses of instruction TLB and cache misses.
See also data event address register (D-EAR), instruction event address register (I-EAR).
event set
A predefined collection of CPU events to be sampled with the cpu measurement. See “Performing
CPU Metrics Analysis ” (p. 197).
execution
trace buffer
(ETB)
See branch trace buffer (BTB)/execution trace buffer (ETB).
350 Glossary