HP Caliper 5.3 User Guide (5900-1558, February 2011)

The report contains two levels of information:
• Exact counts of CPU metrics summed across the entire run of an application
• Sampled IPs that are associated with particular locations in the application
The default for the fprof measurement is to take a sample every 500,000 +/- 25,000 CPU
cycles. (CPU_CYCLES is the event.)
You use the -s (--sampling-spec) option to change both the event being sampled and the
interval. For example, if you want to keep the same variation and sample event and simply change
the interval, you can use the following option: -s 100000. The sampling rate, variation, and
event used are listed in the Sampling Specification part of the report.
Command-line options allow you to control the amount of data reported, how the data is sorted,
and the number of statements and instructions reported for each sampled program location.
Example Command Line for Text Report
$ caliper fprof -o reports/sample.txt ./wordplay thequickbrownfox
Example Command Line for CSV Report
$ caliper fprof --csv csvout ./wordplay thequickbrownfox
fprof Metrics Summed for Entire Run
This section describes the metrics summed over the entire run of your application under HP Caliper.
Metrics for Integrity Servers Itanium 2 Systems
CPU_CYCLES Number of elapsed processor cycles.
BACK_END_BUBBLE.ALL Full pipe bubbles in main pipe.
BE_EXE_BUBBLE.GRALL Full pipe bubbles in main pipe due to execution unit stalls.
% of Cycles Lost Due to Stalls Percentage of cycles lost due to stalls.
% of Cycles Stalled Due to GR/GR
or GR/Load Dependency
Percentage of cycles stalled due to general register/general
register or general register/load dependency.
Metrics for Integrity Servers Dual-Core Itanium 2 and Itanium 9300 Quad-Core Processor Systems
BACK_END_BUBBLE.FE Full pipe bubbles in main pipe due to front end. This is the
number of cycles lost (stall cycles) due to instruction cache,
ITLB, and branch execution stalls.
BE_EXE_BUBBLE.ALL Full pipe bubbles in main pipe due to execution unit stalls.
This is the number of cycles lost (stall cycles) due to stalls
caused by the execution unit.
BE_EXE_BUBBLE.FRALL Full Pipe Bubbles in Main Pipe due to FR/FR or FR/load
dependency stalls. This is the number of cycles lost (stall
cycles) due to FR/FR or FR/load dependency.
BE_EXE_BUBBLE.GRALL Full pipe bubbles in main pipe due to general
register/general register or general register/load
dependency stalls. This is the number of cycles lost (stall
cycles) due to general register/general register or general
register/load dependency.
BE_EXE_BUBBLE.GRGR Full Pipe Bubbles in Main Pipe due to GR/GR dependency
stalls. This is the number of cycles lost (stall cycles) due to
GR/GR dependency stalls.
BE_FLUSH_BUBBLE.ALL Full Pipe Bubbles in Main Pipe due to pipeline flushes. This
is the number of cycles lost (stall cycles) due to branch
misprediction or exception/interruption flush.
fprof Measurement Report Description 201