/*
*
* COPYRIGHT (c) 1989-1999.
* 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.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#define TEST_INIT
#include "system.h"
rtems_task Test_task(
rtems_task_argument argument
);
rtems_task Init(
rtems_task_argument argument
)
{
rtems_status_code status;
Print_Warning();
puts( "\n\n*** TIME TEST 1 ***" );
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 ],
128,
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
)
{
rtems_unsigned32 semaphore_obtain_time;
rtems_unsigned32 semaphore_release_time;
rtems_unsigned32 semaphore_obtain_no_wait_time;
rtems_unsigned32 semaphore_obtain_loop_time;
rtems_unsigned32 semaphore_release_loop_time;
rtems_unsigned32 index;
rtems_unsigned32 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 */
Timer_initialize();
(void) rtems_semaphore_create(
name,
OPERATION_COUNT,
RTEMS_DEFAULT_MODES,
RTEMS_NO_PRIORITY,
&smid
);
end_time = Read_timer();
put_time(
"rtems_semaphore_create",
end_time,
1,
0,
CALLING_OVERHEAD_SEMAPHORE_CREATE
);
/* Time one invocation of rtems_semaphore_delete */
Timer_initialize();
(void) rtems_semaphore_delete( smid );
end_time = Read_timer();
put_time(
"rtems_semaphore_delete",
end_time,
1,
0,
CALLING_OVERHEAD_SEMAPHORE_CREATE
);
status = rtems_semaphore_create(
name,
OPERATION_COUNT,
RTEMS_DEFAULT_ATTRIBUTES,
RTEMS_NO_PRIORITY,
&smid
);
for ( iterations=OPERATION_COUNT ; iterations ; iterations-- ) {
Timer_initialize();
for ( index = 1 ; index<=OPERATION_COUNT ; index++ )
(void) Empty_function();
end_time = Read_timer();
semaphore_obtain_loop_time += end_time;
semaphore_release_loop_time += end_time;
/* rtems_semaphore_obtain (available) */
Timer_initialize();
for ( index = 1 ; index<=OPERATION_COUNT ; index++ )
(void) rtems_semaphore_obtain(
smid,
RTEMS_DEFAULT_OPTIONS,
RTEMS_NO_TIMEOUT
);
end_time = Read_timer();
semaphore_obtain_time += end_time;
/* rtems_semaphore_release */
Timer_initialize();
for ( index = 1 ; index<=OPERATION_COUNT ; index++ )
(void) rtems_semaphore_release( smid );
end_time = Read_timer();
semaphore_release_time += end_time;
/* semaphore obtain (RTEMS_NO_WAIT) */
Timer_initialize();
for ( index = 1 ; index<=OPERATION_COUNT ; index++ )
rtems_semaphore_obtain( smid, RTEMS_NO_WAIT, RTEMS_NO_TIMEOUT );
semaphore_obtain_no_wait_time += Read_timer();
Timer_initialize();
for ( index = 1 ; index<=OPERATION_COUNT ; index++ )
rtems_semaphore_release( smid );
end_time = Read_timer();
semaphore_release_time += end_time;
}
put_time(
"rtems_semaphore_obtain: available",
semaphore_obtain_time,
OPERATION_COUNT * OPERATION_COUNT,
semaphore_obtain_loop_time,
CALLING_OVERHEAD_SEMAPHORE_OBTAIN
);
put_time(
"rtems_semaphore_obtain: not available -- NO_WAIT",
semaphore_obtain_no_wait_time,
OPERATION_COUNT * OPERATION_COUNT,
semaphore_obtain_loop_time,
CALLING_OVERHEAD_SEMAPHORE_OBTAIN
);
put_time(
"rtems_semaphore_release: no waiting tasks",
semaphore_release_time,
OPERATION_COUNT * OPERATION_COUNT * 2,
semaphore_release_loop_time * 2,
CALLING_OVERHEAD_SEMAPHORE_RELEASE
);
puts( "*** END OF TEST 1 ***" );
rtems_test_exit( 0 );
}