HP Caliper User's Guide

HP Caliper stops reporting information when it reaches either a percentage cutoff or
a cumulative percentage cutoff:
• You can limit the report only to functions that exceed a specified percentage of the
total for the sorting/cutoff metric. Once HP Caliper encounters this percentage
cutoff, it stops reporting functions.
• You can limit the report by having HP Caliper stop reporting functions once the
cumulative percent of the functions so far listed exceeds the cumulative percentage
cutoff value.
You can also specify an integer for the minimum number of functions to be displayed
for all load modules.
percent_cutoff
The percentage of the total for the sort metric that a given
function must exceed to appear on the report.
Default value is 0.1.
This value only takes effect if the percent-of-total column
is selected for the report.
cum_percent_cutoff
The value of the cumulative percentage at which HP
Caliper stops reporting results.
Default value is 100.
This value only takes effect if the cumulative percent
column is selected for the report.
min_count
Sets the minimum number of functions to be displayed
for all load modules.
Default value is 5.
For example, if you specify the command line:
caliper fprof --summary-cutoff ,80 wordplay
The contents of the function summary section will be a list of functions containing:
• The functions that account for 80 percent of the total IP samples in the wordplay
program.
• Only those functions that each account for more than 0.1 percent of total samples
for all load modules. Since percent_cutoff was not specified, HP Caliper used
the default value, 0.1 percent.
--system-model (Linux only)
--system-model model-number,number-of-cells
Specifies the system model number and number of locality domains for reporting
latency buckets with the dcache measurement.
--system-model (Linux only) 97