HP UX Caliper Software manual Call Stack Profile Report Details

[4] 100.0 0.00 enh_thr_mutex1::foo [4]

100.00libc.so.6.1::sleep [3]

------------------------------------------------

		100.00	libpthread.so.0::start_thread	[6]
[5]	100.0	0.00	enh_thr_mutex1::start_routine [5]

100.00enh_thr_mutex1::foo [4]

------------------------------------------------

		100.00	libc.so.6.1::__clone2 [7]
[6]	100.0	0.00	libpthread.so.0::start_thread	[6]

100.00enh_thr_mutex1::start_routine [5]

------------------------------------------------

		100.00	*ROOT* [8]
[7]	100.0	0.00	libc.so.6.1::__clone2 [7]

100.00libpthread.so.0::start_thread [6]

------------------------------------------------

[8] 100.0 0.00 *ROOT* [8]

100.00libc.so.6.1::__clone2 [7]

------------------------------------------------

Function Indexes (Thread 31023@start_routine)

---------------------------------------------------

Index	Name	Index	Name
---------------------------------------------------
2	__GC___libc_nanosleep	8	*ROOT*
7	__clone2	4	foo
1	*kernel gateway*	3	sleep
5	start_routine	6	start_thread

Call Stack Profile Report Details

This section gives some information about the sampled call stack profile report.

Flat Profile Part of the Report

The flat profile part of the report contains two levels of information:

•Function Summary: exact counts of direct sample hits in function, summed across an entire run of a measured application

•Function Details: sampled PCs that are associated with the particular locations in the measured application

You can specify how to arrange the results in the flat profile with the --sort-byoption. The valid sorting parameters are:

•samples (default)

•samples-running (HP-UX only)

•samples-blocked (HP-UX only)

Blocking Primitives Summary Part of the Report

This section reports the exact counts and percentages of samples blocked waiting for a primitive. You can use the --prim-cutoffoption to specify cutoff values that limit the blocking primitives reported in this section.

Thread Synchronization Primitive's Holder and Waiter Thread Analysis (HP-UX 11.31 only)

The Caliper cstack measurement supports holder and waiter thread analysis of synchronization primitives in a multi-threaded application. Currently this feature is available for pthread mutexes on HP-UX 11.31 only. To exploit this feature, the target application needs to be linked with libpthread version 11.31_BL2009_1012_2 (or later). The pthread library is available with cumulative patch PHCO_40211.

Example 4 shows a report produced by a sample cstack run.

Call Stack Profile Report Details 147