NAME | DESCRIPTION | ATTRIBUTES | SEE ALSO
This module provides an API to share the system timer (clock) in two modes:
The free-running mode causes the timer to overflow after reaching it's maximum value and continue to count up from its minimum value. This mode can be used for fine grained execution measurement. This deactivates the system clock.
In the periodic mode, the system timer is shared between the application and the system tick. The timer will generate an interrupt at a constant interval. The application hander will be invoked at the required period. This mode can be used by applications such as profilers.
The PERF API closely follows the timer(9DDI).
See attributes(5) for descriptions of the following attributes:
ATTRIBUTE TYPE | ATTRIBUTE VALUE |
---|---|
Interface Stability | Evolving |
NAME | DESCRIPTION | ATTRIBUTES | SEE ALSO