HP Caliper User's Guide

traps Measurement Report Description
Available only on Integrity servers dual-core Itanium 2 and Itanium 9300 quad-core
processor systems.
With the traps measurement, produced by the traps measurement configuration
file, HP Caliper collects and reports a profile of traps, interrupts, and faults.
The trap profile is produced by statistical sampling of the execution trace buffer (ETB)
configured to capture all changes to/from privilege level 0. By default, the traps
measurement samples the ETB at every 1,000 CPU cycles, with a variation of 5 percent,
and a threshold of 0.
You can change the sampling rate, sampling variation, and threshold with the -s
period option. You should not change the default event (CPU_CPL_CHANGES.LVL0)
or the privilege level mask (all).
You can use the --traps-reported option to specify which traps, interrupts, and
faults are reported. By default, the top 6 traps, interrupts, and faults are reported.
At collection time, information about all 34 traps, interrupts, and faults is collected.
The --traps-reported option only dictates what is reported. You can get a report
on different traps, interrupts, and faults from the same database, using different
caliper report runs.
You can specify the names of from 1 to 6 comma-separated traps, interrupts, and faults.
Possible names that you can choose for reporting are:
32INCPT IA32 Intercept
32INRPT IA32 Interrupt
ADTLB Alternate data translation lookaside buffer fault
AITLB Alternate instruction translation lookaside buffer fault
BREAK Break instruction fault
DACCS Data access bit fault
DARGHT Data access rights fault
DBIT Data dirty bit fault
DEBUG Debug fault
DFPREG Disabled floating-point register fault
DKEY Data key miss fault
DNTLB Data nested translation lookaside buffer fault
DTLB Data translation lookaside buffer fault
FPFLT Floating-point Fault
FPTRP Floating-point Trap
GEXCP General exception:
Unimplemented data address fault
Illegal operation fault
Illegal dependency fault
292 Descriptions of Measurement Reports