/*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#define CONFIGURE_INIT
#include "system.h"
const char rtems_test_name[] = "TIME TEST";
rtems_task Test_task(
rtems_task_argument argument
);
rtems_task Init(
rtems_task_argument argument
)
{
rtems_status_code status;
Print_Warning();
TEST_BEGIN();
Task_name[ 1 ] = rtems_build_name( 'T', 'A', '1', ' ' );
Task_name[ 2 ] = rtems_build_name( 'T', 'A', '2', ' ' );
Task_name[ 3 ] = rtems_build_name( 'T', 'A', '3', ' ' );
status = rtems_task_create(
Task_name[ 1 ],
(RTEMS_MAXIMUM_PRIORITY / 2u) + 1u,
RTEMS_MINIMUM_STACK_SIZE,
RTEMS_DEFAULT_MODES,
RTEMS_DEFAULT_ATTRIBUTES,
&Task_id[ 1 ]
);
directive_failed( status, "rtems_task_create of TA1" );
status = rtems_task_start( Task_id[ 1 ], Test_task, 0 );
directive_failed( status, "rtems_task_start of TA1" );
status = rtems_task_delete( RTEMS_SELF );
directive_failed( status, "rtems_task_delete of RTEMS_SELF" );
}
rtems_task Test_task(
rtems_task_argument argument
)
{
uint32_t semaphore_obtain_time;
uint32_t semaphore_release_time;
uint32_t semaphore_obtain_no_wait_time;
uint32_t semaphore_obtain_loop_time;
uint32_t semaphore_release_loop_time;
uint32_t index;
uint32_t iterations;
rtems_name name;
rtems_id smid;
rtems_status_code status;
name = rtems_build_name( 'S', 'M', '1', ' ' );
semaphore_obtain_time = 0;
semaphore_release_time = 0;
semaphore_obtain_no_wait_time = 0;
semaphore_obtain_loop_time = 0;
semaphore_release_loop_time = 0;
/* Time one invocation of rtems_semaphore_create */
benchmark_timer_initialize();
(void) rtems_semaphore_create(
name,
OPERATION_COUNT,
RTEMS_DEFAULT_MODES,
RTEMS_NO_PRIORITY,
&smid
);
end_time = benchmark_timer_read();
put_time(
"rtems_semaphore_create: only case",
end_time,
1,
0,
0
);
/* Time one invocation of rtems_semaphore_delete */
benchmark_timer_initialize();
(void) rtems_semaphore_delete( smid );
end_time = benchmark_timer_read();
put_time(
"rtems_semaphore_delete: only case",
end_time,
1,
0,
0
);
status = rtems_semaphore_create(
name,
OPERATION_COUNT,
RTEMS_DEFAULT_ATTRIBUTES,
RTEMS_NO_PRIORITY,
&smid
);
directive_failed( status, "rtems_task_create of TA1" );
for ( iterations=OPERATION_COUNT ; iterations ; iterations-- ) {
benchmark_timer_initialize();
for ( index = 1 ; index<=OPERATION_COUNT ; index++ )
(void) benchmark_timer_empty_function();
end_time = benchmark_timer_read();
semaphore_obtain_loop_time += end_time;
semaphore_release_loop_time += end_time;
/* rtems_semaphore_obtain (available) */
benchmark_timer_initialize();
for ( index = 1 ; index<=OPERATION_COUNT ; index++ )
(void) rtems_semaphore_obtain(
smid,
RTEMS_DEFAULT_OPTIONS,
RTEMS_NO_TIMEOUT
);
end_time = benchmark_timer_read();
semaphore_obtain_time += end_time;
/* rtems_semaphore_release */
benchmark_timer_initialize();
for ( index = 1 ; index<=OPERATION_COUNT ; index++ )
(void) rtems_semaphore_release( smid );
end_time = benchmark_timer_read();
semaphore_release_time += end_time;
/* semaphore obtain (RTEMS_NO_WAIT) */
benchmark_timer_initialize();
for ( index = 1 ; index<=OPERATION_COUNT ; index++ )
rtems_semaphore_obtain( smid, RTEMS_NO_WAIT, RTEMS_NO_TIMEOUT );
semaphore_obtain_no_wait_time += benchmark_timer_read();
benchmark_timer_initialize();
for ( index = 1 ; index<=OPERATION_COUNT ; index++ )
rtems_semaphore_release( smid );
end_time = benchmark_timer_read();
semaphore_release_time += end_time;
}
put_time(
"rtems_semaphore_obtain: available",
semaphore_obtain_time,
OPERATION_COUNT * OPERATION_COUNT,
semaphore_obtain_loop_time,
0
);
put_time(
"rtems_semaphore_obtain: not available NO_WAIT",
semaphore_obtain_no_wait_time,
OPERATION_COUNT * OPERATION_COUNT,
semaphore_obtain_loop_time,
0
);
put_time(
"rtems_semaphore_release: no waiting tasks",
semaphore_release_time,
OPERATION_COUNT * OPERATION_COUNT * 2,
semaphore_release_loop_time * 2,
0
);
TEST_END();
rtems_test_exit( 0 );
}