HP Caliper User's Guide

Example 6-1 HP Caliper Advisor Report
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HP Caliper 4.3.0 Advisor Report for my_app
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Analysis Focus
Executable: /tmp/my_app
Last modified: August 15, 2004 at 03:10 PM
Processor type: Itanium2 9M
Processor speed: 1599 MHz
OS version: HP-UX 11.23
Performance Databases
/home/me/.hp_caliper_databases/cpu - March 23, 2005 at 11:17 AM
/home/me/.hp_caliper_databases/fprof - March 23, 2005 at 07:52 PM
Rule Files
default - Default Caliper Advisor rules
@ /opt/caliper/rules
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Index Class Analysis
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23.9 cpu Function profile [cpu_fprof_1]
The following functions account for 23.9% of the CPU cycles
used by the application. Improving the algorithm(s) used in
these routines and/or increasing the compiler optimization
level can improve performance.
11.9% compare_items
8.2% search_dbase
3.8% new_item_insert
Use the following Caliper command to get a source listing of
the 'hot spots' in these routines:
caliper report fprof
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16.6 memory ITLB misses [mem_itlb_general]
The percentage of ITLB misses (16.6%) is higher than normal.
This may indicate a poor setting for the virtual memory
instruction page size.
Try adding "+pi 4M" to the application's link command.
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* Note: 1 piece of advice was not printed due to cutoff limits and/or
selection criteria.
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[Minimum index: 5.0, minimum count: 5, maximum count: 15]
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Steps in Using the Advisor
The Advisor is part of an iterative process of building, measuring, understanding, and
tuning an application's performance, as shown in Figure 6-1 “Steps in Using the
Advisor”.
102 Using the HP Caliper Advisor