or:
$ caliper ecount my_new_app
followed by:
$ caliper fprof my_new_app $ caliper dcache my_new_app
Then, run the Advisor on the composite performance data:
$ caliper advise
Explanation of Report Output
Figure 14 (page 82) shows the report output from the Advisor. The report is explained further in “How to Read an Advisor Report” (p. 83).
The numbers (which are bold in the PDF version of this guide) are annotations to explain the
Figure 14 HP Caliper Advisor Report, with Annotations
===========================================================================
HP Caliper 4.3.0 Advisor Report for my_app
===========================================================================
Analysis Focus | 1 |
|
|
Executable: | /tmp/my_app | ||
Last modified: | August 15, 2004 at 03:10 PM | ||
Processor type: | Itanium2 9M | ||
Processor speed: | 1599 MHz | ||
OS version: |
Performance Databases 2
/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 3
default - Default Caliper Advisor rules @ /opt/caliper/rules
Index Class Analysis 4
23.9 cpu | Function profile [cpu_fprof_1] | 5 |
| |
| 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
16.6memory ITLB misses [mem_itlb_general] 6
Try adding "+pi 4M" to the application's link command.
The percentage of ITLB misses (16.6%) is higher than normal. This may indicate a poor setting for the instruction page size.
[Minimum index: 5.0, minimum count: 5, maximum count: 15] 7
1Application object being analyzed, which version (when it was last modified), the
5First piece of advice, set off by a line of dashes
82 Using the HP Caliper Advisor