pm_set_program_mygroup_mx and pm_set_program_mygroup_mm Subroutines
Purpose
Sets Performance Monitor programmation in counter multiplexing mode and multi-mode for the calling thread and creates a counting group.
Library
Performance Monitor APIs Library (libpmapi.a)
Syntax
Description
The pm_set_program_mygroup_mx and pm_set_program_mygroup_mmsubroutines set the Performance Monitor programmation respectively in counter multiplexing mode or in multi-mode for the calling kernel thread.
The pm_set_program_mygroup_mx subroutine setting includes the list of event arrays to be counted and a mode in which to count. The mode is global to all of the event lists. The events to count are in an array of list of event identifiers.
The pm_set_program_mygroup_mm subroutine setting includes the list of the event arrays to be counted, and the mode in which to count each event array. A counting mode is defined for each event array.
The identifiers must be selected from the lists returned by the pm_initialize subroutine.
Both subroutines create a counting group, which includes the calling thread and any thread which it, or any of its descendants, will create in the future. Optionally, the group can be defined as also containing all the existing and future threads belonging to the calling process.
The counting mode for both subroutines includes the User Mode or the Kernel Mode, or both of them; the Initial Counting State. The defaults are set to Off for User Mode and Kernel Mode, and the initial default state is set to delay counting until the pm_start_mygroup subroutine is called.
When you use the pm_set_program_mygroup_mm subroutine for multi-mode counting, the Process Tree Mode and the Start Counting Mode are fixed by their values defined in the first programming set.
If the list includes an event which can be used with a threshold (as indicated by the pm_init subroutine), a threshold value can also be specified.
Parameters
| Item | Description |
|---|---|
| *prog | Specifies
the events and modes to use in Performance Monitor
setup. The prog parameter supports the following
modes:
|
| *prog_mm | Specifies the events and the associated modes to use in the
Performance Monitor setup. The prog_mm parameter
supports the following modes:
The PM_PROCTREE mode and the PM_COUNT mode defined in the first setting fix the value for the counting. |
Return Values
| Item | Description |
|---|---|
| 0 | Operation completed successfully. |
| Positive Error Code | Refer to the pm_error Subroutine to decode the error code. |
Error Codes
Refer to the pm_error Subroutine.
Files
| Item | Description |
|---|---|
| /usr/include/pmapi.h | Defines standard macros, data types, and subroutines. |