11.1. Introduction

The Rate-Monotonic Manager provides facilities to implement tasks which execute in a periodic fashion. Critically, it also gathers information about the execution of those periods and can provide important statistics to the user which can be used to analyze and tune the application. The directives provided by the Rate-Monotonic Manager are:

• rtems_rate_monotonic_create() - Creates a period.

• rtems_rate_monotonic_ident() - Identifies a period by the object name.

• rtems_rate_monotonic_cancel() - Cancels the period.

• rtems_rate_monotonic_delete() - Deletes the period.

• rtems_rate_monotonic_period() - Concludes the current period and start the next period, or gets the period status.

• rtems_rate_monotonic_get_status() - Gets the detailed status of the period.

• rtems_rate_monotonic_get_statistics() - Gets the statistics of the period.

• rtems_rate_monotonic_reset_statistics() - Resets the statistics of the period.

• rtems_rate_monotonic_reset_all_statistics() - Resets the statistics of all periods.

• rtems_rate_monotonic_report_statistics() - Reports the period statistics using the printk() printer.

• rtems_rate_monotonic_report_statistics_with_plugin() - Reports the period statistics using the printer plugin.