pm_cycles Subroutine
Purpose
Returns processor speed in cycles per second.
Library
Performance Monitor APIs Library (libpmapi.a)
Syntax
#include <pmapi.h>
double pm_cycles (void)Description
The pm_cycles subroutine returns the nominal processor speed for the system. The speed is returned in cycles per second. The nominal processor speed is the maximum frequency at which the system can run across all environments and workload conditions. Depending on system conditions, the nominal processor frequency might not represent the minimum or maximum achievable processor speed.
Return Values
| Item | Description |
|---|---|
| 0 | An error occurred. |
| Processor speed in cycles per second | No errors occurred. |
Files
| Item | Description |
|---|---|
| /usr/include/pmapi.h | Defines standard macros, data types, and subroutines. |