/*
* COPYRIGHT (c) 1989-2013.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#if !defined(OPERATION_COUNT)
#define OPERATION_COUNT 100
#endif
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/btimer.h>
#define CONFIGURE_INIT
#include "system.h"
const char rtems_test_name[] = "TIME TEST 24";
uint32_t Task_count;
rtems_task Tasks(
rtems_task_argument argument
);
rtems_task High_task(
rtems_task_argument argument
);
rtems_task Init(
rtems_task_argument argument
)
{
rtems_id id;
uint32_t index;
rtems_status_code status;
Print_Warning();
TEST_BEGIN();
status = rtems_task_create(
rtems_build_name( 'H', 'I', 'G', 'H' ),
1,
RTEMS_MINIMUM_STACK_SIZE,
RTEMS_DEFAULT_MODES,
RTEMS_DEFAULT_ATTRIBUTES,
&id
);
directive_failed( status, "rtems_task_create HIGH" );
status = rtems_task_start( id, High_task, 0 );
directive_failed( status, "rtems_task_create HIGH" );
for ( index = 1 ; index <= OPERATION_COUNT ; index++ ) {
status = rtems_task_create(
rtems_build_name( 'R', 'E', 'S', 'T' ),
(RTEMS_MAXIMUM_PRIORITY / 2u) + 1u,
RTEMS_MINIMUM_STACK_SIZE,
RTEMS_DEFAULT_MODES,
RTEMS_DEFAULT_ATTRIBUTES,
&id
);
directive_failed( status, "rtems_task_create LOOP" );
status = rtems_task_start( id, Tasks, 0 );
directive_failed( status, "rtems_task_start LOOP" );
}
rtems_task_exit();
}
rtems_task High_task(
rtems_task_argument argument
)
{
uint32_t index;
benchmark_timer_initialize();
for ( index=1 ; index <= OPERATION_COUNT ; index++ )
(void) benchmark_timer_empty_function();
overhead = benchmark_timer_read();
benchmark_timer_initialize();
for ( index=1 ; index <= OPERATION_COUNT ; index++ )
(void) rtems_task_wake_after( RTEMS_YIELD_PROCESSOR );
end_time = benchmark_timer_read();
put_time(
"rtems_task_wake_after: yield returns to caller",
end_time,
OPERATION_COUNT,
overhead,
0
);
Task_count = 0;
rtems_task_exit();
}
rtems_task Tasks(
rtems_task_argument argument
)
{
Task_count++;
if ( Task_count == 1 )
benchmark_timer_initialize();
else if ( Task_count == OPERATION_COUNT ) {
end_time = benchmark_timer_read();
put_time(
"rtems_task_wake_after: yields preempts caller",
end_time,
OPERATION_COUNT,
overhead,
0
);
TEST_END();
rtems_test_exit( 0 );
}
(void) rtems_task_wake_after( RTEMS_YIELD_PROCESSOR );
}